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Finding the Fourth Proportional to 109,776.38, 151,500.30 and 62,039.64

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Solution

The fourth proportional to 109,776.38, 151,500.30 and 62,039.64 is: 85,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,776.38 : 151,500.30 = 62,039.64 : x
  2. Step 2: Convert to fraction form
    109,776.38/151,500.30 = 62,039.64/x
  3. Step 3: Cross multiply
    109,776.38x = 151,500.30 × 62,039.64
  4. Step 4: Simplify right side
    109,776.38x = 9,399,024,071.89
  5. Step 5: Solve for x
    x = 9,399,024,071.89/109,776.38
  6. Step 6: Final answer
    x = 85,619.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.