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Finding the Fourth Proportional to 389,554.88, 584,663.88 and 153,062.96

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Solution

The fourth proportional to 389,554.88, 584,663.88 and 153,062.96 is: 229,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,554.88 : 584,663.88 = 153,062.96 : x
  2. Step 2: Convert to fraction form
    389,554.88/584,663.88 = 153,062.96/x
  3. Step 3: Cross multiply
    389,554.88x = 584,663.88 × 153,062.96
  4. Step 4: Simplify right side
    389,554.88x = 89,490,384,077.88
  5. Step 5: Solve for x
    x = 89,490,384,077.88/389,554.88
  6. Step 6: Final answer
    x = 229,724.72

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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.