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Finding the Fourth Proportional to 138,265.94, 207,479.40 and 58,298.89

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Solution

The fourth proportional to 138,265.94, 207,479.40 and 58,298.89 is: 87,482.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,265.94 : 207,479.40 = 58,298.89 : x
  2. Step 2: Convert to fraction form
    138,265.94/207,479.40 = 58,298.89/x
  3. Step 3: Cross multiply
    138,265.94x = 207,479.40 × 58,298.89
  4. Step 4: Simplify right side
    138,265.94x = 12,095,817,388.97
  5. Step 5: Solve for x
    x = 12,095,817,388.97/138,265.94
  6. Step 6: Final answer
    x = 87,482.27

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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.