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Finding the Fourth Proportional to 145,909.62, 218,712.69 and 61,599.42

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Solution

The fourth proportional to 145,909.62, 218,712.69 and 61,599.42 is: 92,335.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,909.62 : 218,712.69 = 61,599.42 : x
  2. Step 2: Convert to fraction form
    145,909.62/218,712.69 = 61,599.42/x
  3. Step 3: Cross multiply
    145,909.62x = 218,712.69 × 61,599.42
  4. Step 4: Simplify right side
    145,909.62x = 13,472,574,850.64
  5. Step 5: Solve for x
    x = 13,472,574,850.64/145,909.62
  6. Step 6: Final answer
    x = 92,335.07

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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.