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Finding the Fourth Proportional to 365,086.40, 547,681.48 and 112,387.92

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Solution

The fourth proportional to 365,086.40, 547,681.48 and 112,387.92 is: 168,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,086.40 : 547,681.48 = 112,387.92 : x
  2. Step 2: Convert to fraction form
    365,086.40/547,681.48 = 112,387.92/x
  3. Step 3: Cross multiply
    365,086.40x = 547,681.48 × 112,387.92
  4. Step 4: Simplify right side
    365,086.40x = 61,552,782,359.72
  5. Step 5: Solve for x
    x = 61,552,782,359.72/365,086.40
  6. Step 6: Final answer
    x = 168,597.85

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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.