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Finding the Fourth Proportional to 107,851.20, 161,776.80 and 37,737.60

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Solution

The fourth proportional to 107,851.20, 161,776.80 and 37,737.60 is: 56,606.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,851.20 : 161,776.80 = 37,737.60 : x
  2. Step 2: Convert to fraction form
    107,851.20/161,776.80 = 37,737.60/x
  3. Step 3: Cross multiply
    107,851.20x = 161,776.80 × 37,737.60
  4. Step 4: Simplify right side
    107,851.20x = 6,105,068,167.68
  5. Step 5: Solve for x
    x = 6,105,068,167.68/107,851.20
  6. Step 6: Final answer
    x = 56,606.40

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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.