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Finding the Fourth Proportional to 369,695.22, 554,542.88 and 89,212.47

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Solution

The fourth proportional to 369,695.22, 554,542.88 and 89,212.47 is: 133,818.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,695.22 : 554,542.88 = 89,212.47 : x
  2. Step 2: Convert to fraction form
    369,695.22/554,542.88 = 89,212.47/x
  3. Step 3: Cross multiply
    369,695.22x = 554,542.88 × 89,212.47
  4. Step 4: Simplify right side
    369,695.22x = 49,472,140,045.71
  5. Step 5: Solve for x
    x = 49,472,140,045.71/369,695.22
  6. Step 6: Final answer
    x = 133,818.72

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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.