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Finding the Fourth Proportional to 272,442.59, 375,964.88 and 157,726.10

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Solution

The fourth proportional to 272,442.59, 375,964.88 and 157,726.10 is: 217,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,442.59 : 375,964.88 = 157,726.10 : x
  2. Step 2: Convert to fraction form
    272,442.59/375,964.88 = 157,726.10/x
  3. Step 3: Cross multiply
    272,442.59x = 375,964.88 × 157,726.10
  4. Step 4: Simplify right side
    272,442.59x = 59,299,471,590.91
  5. Step 5: Solve for x
    x = 59,299,471,590.91/272,442.59
  6. Step 6: Final answer
    x = 217,658.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.