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Finding the Fourth Proportional to 97,700.80, 146,551.20 and 56,228.80

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Solution

The fourth proportional to 97,700.80, 146,551.20 and 56,228.80 is: 84,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,700.80 : 146,551.20 = 56,228.80 : x
  2. Step 2: Convert to fraction form
    97,700.80/146,551.20 = 56,228.80/x
  3. Step 3: Cross multiply
    97,700.80x = 146,551.20 × 56,228.80
  4. Step 4: Simplify right side
    97,700.80x = 8,240,398,114.56
  5. Step 5: Solve for x
    x = 8,240,398,114.56/97,700.80
  6. Step 6: Final answer
    x = 84,343.20

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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.