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Finding the Fourth Proportional to 329,079.70, 493,619.55 and 92,430.10

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Solution

The fourth proportional to 329,079.70, 493,619.55 and 92,430.10 is: 138,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,079.70 : 493,619.55 = 92,430.10 : x
  2. Step 2: Convert to fraction form
    329,079.70/493,619.55 = 92,430.10/x
  3. Step 3: Cross multiply
    329,079.70x = 493,619.55 × 92,430.10
  4. Step 4: Simplify right side
    329,079.70x = 45,625,304,368.46
  5. Step 5: Solve for x
    x = 45,625,304,368.46/329,079.70
  6. Step 6: Final answer
    x = 138,645.15

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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.