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Finding the Fourth Proportional to 137,250.40, 205,778.40 and 62,406.40

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Solution

The fourth proportional to 137,250.40, 205,778.40 and 62,406.40 is: 93,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,250.40 : 205,778.40 = 62,406.40 : x
  2. Step 2: Convert to fraction form
    137,250.40/205,778.40 = 62,406.40/x
  3. Step 3: Cross multiply
    137,250.40x = 205,778.40 × 62,406.40
  4. Step 4: Simplify right side
    137,250.40x = 12,841,889,141.76
  5. Step 5: Solve for x
    x = 12,841,889,141.76/137,250.40
  6. Step 6: Final answer
    x = 93,565.40

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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.