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Finding the Fourth Proportional to 99,602.70, 139,793.70 and 99,602.70

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Solution

The fourth proportional to 99,602.70, 139,793.70 and 99,602.70 is: 139,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,602.70 : 139,793.70 = 99,602.70 : x
  2. Step 2: Convert to fraction form
    99,602.70/139,793.70 = 99,602.70/x
  3. Step 3: Cross multiply
    99,602.70x = 139,793.70 × 99,602.70
  4. Step 4: Simplify right side
    99,602.70x = 13,923,829,962.99
  5. Step 5: Solve for x
    x = 13,923,829,962.99/99,602.70
  6. Step 6: Final answer
    x = 139,793.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.