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Finding the Fourth Proportional to 91,327.84, 136,732.48 and 59,774.56

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Solution

The fourth proportional to 91,327.84, 136,732.48 and 59,774.56 is: 89,492.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,327.84 : 136,732.48 = 59,774.56 : x
  2. Step 2: Convert to fraction form
    91,327.84/136,732.48 = 59,774.56/x
  3. Step 3: Cross multiply
    91,327.84x = 136,732.48 × 59,774.56
  4. Step 4: Simplify right side
    91,327.84x = 8,173,123,829.71
  5. Step 5: Solve for x
    x = 8,173,123,829.71/91,327.84
  6. Step 6: Final answer
    x = 89,492.14

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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.