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Finding the Fourth Proportional to 498,810.60, 748,215.91 and 119,731.34

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Solution

The fourth proportional to 498,810.60, 748,215.91 and 119,731.34 is: 179,597.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,810.60 : 748,215.91 = 119,731.34 : x
  2. Step 2: Convert to fraction form
    498,810.60/748,215.91 = 119,731.34/x
  3. Step 3: Cross multiply
    498,810.60x = 748,215.91 × 119,731.34
  4. Step 4: Simplify right side
    498,810.60x = 89,584,893,513.62
  5. Step 5: Solve for x
    x = 89,584,893,513.62/498,810.60
  6. Step 6: Final answer
    x = 179,597.01

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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.