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Finding the Fourth Proportional to 161,490,748.80, 242,236,123.20 and 161,490,748.80

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Solution

The fourth proportional to 161,490,748.80, 242,236,123.20 and 161,490,748.80 is: 242,236,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,490,748.80 : 242,236,123.20 = 161,490,748.80 : x
  2. Step 2: Convert to fraction form
    161,490,748.80/242,236,123.20 = 161,490,748.80/x
  3. Step 3: Cross multiply
    161,490,748.80x = 242,236,123.20 × 161,490,748.80
  4. Step 4: Simplify right side
    161,490,748.80x = 39,118,892,921,977,056
  5. Step 5: Solve for x
    x = 39,118,892,921,977,056/161,490,748.80
  6. Step 6: Final answer
    x = 242,236,123.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.