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Finding the Fourth Proportional to 452,554.60, 678,865.92 and 137,036.92

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Solution

The fourth proportional to 452,554.60, 678,865.92 and 137,036.92 is: 205,565.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,554.60 : 678,865.92 = 137,036.92 : x
  2. Step 2: Convert to fraction form
    452,554.60/678,865.92 = 137,036.92/x
  3. Step 3: Cross multiply
    452,554.60x = 678,865.92 × 137,036.92
  4. Step 4: Simplify right side
    452,554.60x = 93,029,694,769.77
  5. Step 5: Solve for x
    x = 93,029,694,769.77/452,554.60
  6. Step 6: Final answer
    x = 205,565.68

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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.