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Finding the Fourth Proportional to 291,881.65, 437,867.54 and 123,402.53

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Solution

The fourth proportional to 291,881.65, 437,867.54 and 123,402.53 is: 185,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,881.65 : 437,867.54 = 123,402.53 : x
  2. Step 2: Convert to fraction form
    291,881.65/437,867.54 = 123,402.53/x
  3. Step 3: Cross multiply
    291,881.65x = 437,867.54 × 123,402.53
  4. Step 4: Simplify right side
    291,881.65x = 54,033,962,240.88
  5. Step 5: Solve for x
    x = 54,033,962,240.88/291,881.65
  6. Step 6: Final answer
    x = 185,122.85

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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.