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Finding the Fourth Proportional to 107,502.80, 161,302.20 and 37,432.40

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Solution

The fourth proportional to 107,502.80, 161,302.20 and 37,432.40 is: 56,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,502.80 : 161,302.20 = 37,432.40 : x
  2. Step 2: Convert to fraction form
    107,502.80/161,302.20 = 37,432.40/x
  3. Step 3: Cross multiply
    107,502.80x = 161,302.20 × 37,432.40
  4. Step 4: Simplify right side
    107,502.80x = 6,037,928,471.28
  5. Step 5: Solve for x
    x = 6,037,928,471.28/107,502.80
  6. Step 6: Final answer
    x = 56,165.31

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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.