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Finding the Fourth Proportional to 145,874.61, 218,835.27 and 61,635.59

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Solution

The fourth proportional to 145,874.61, 218,835.27 and 61,635.59 is: 92,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,874.61 : 218,835.27 = 61,635.59 : x
  2. Step 2: Convert to fraction form
    145,874.61/218,835.27 = 61,635.59/x
  3. Step 3: Cross multiply
    145,874.61x = 218,835.27 × 61,635.59
  4. Step 4: Simplify right side
    145,874.61x = 13,488,041,321.19
  5. Step 5: Solve for x
    x = 13,488,041,321.19/145,874.61
  6. Step 6: Final answer
    x = 92,463.25

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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.