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Finding the Fourth Proportional to 356,151.40, 534,327.24 and 143,068.92

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Solution

The fourth proportional to 356,151.40, 534,327.24 and 143,068.92 is: 214,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,151.40 : 534,327.24 = 143,068.92 : x
  2. Step 2: Convert to fraction form
    356,151.40/534,327.24 = 143,068.92/x
  3. Step 3: Cross multiply
    356,151.40x = 534,327.24 × 143,068.92
  4. Step 4: Simplify right side
    356,151.40x = 76,445,621,153.38
  5. Step 5: Solve for x
    x = 76,445,621,153.38/356,151.40
  6. Step 6: Final answer
    x = 214,643.61

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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.