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Finding the Fourth Proportional to 145,494.54, 218,295.18 and 61,275.96

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Solution

The fourth proportional to 145,494.54, 218,295.18 and 61,275.96 is: 91,936.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,494.54 : 218,295.18 = 61,275.96 : x
  2. Step 2: Convert to fraction form
    145,494.54/218,295.18 = 61,275.96/x
  3. Step 3: Cross multiply
    145,494.54x = 218,295.18 × 61,275.96
  4. Step 4: Simplify right side
    145,494.54x = 13,376,246,717.87
  5. Step 5: Solve for x
    x = 13,376,246,717.87/145,494.54
  6. Step 6: Final answer
    x = 91,936.42

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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.