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Finding the Fourth Proportional to 87,332.80, 130,999.20 and 37,404.40

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Solution

The fourth proportional to 87,332.80, 130,999.20 and 37,404.40 is: 56,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,332.80 : 130,999.20 = 37,404.40 : x
  2. Step 2: Convert to fraction form
    87,332.80/130,999.20 = 37,404.40/x
  3. Step 3: Cross multiply
    87,332.80x = 130,999.20 × 37,404.40
  4. Step 4: Simplify right side
    87,332.80x = 4,899,946,476.48
  5. Step 5: Solve for x
    x = 4,899,946,476.48/87,332.80
  6. Step 6: Final answer
    x = 56,106.60

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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.