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Finding the Fourth Proportional to 104,154.59, 143,732.98 and 56,407.93

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Solution

The fourth proportional to 104,154.59, 143,732.98 and 56,407.93 is: 77,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,154.59 : 143,732.98 = 56,407.93 : x
  2. Step 2: Convert to fraction form
    104,154.59/143,732.98 = 56,407.93/x
  3. Step 3: Cross multiply
    104,154.59x = 143,732.98 × 56,407.93
  4. Step 4: Simplify right side
    104,154.59x = 8,107,679,585.71
  5. Step 5: Solve for x
    x = 8,107,679,585.71/104,154.59
  6. Step 6: Final answer
    x = 77,842.75

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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.