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Finding the Fourth Proportional to 361,809.61, 542,740.54 and 95,566.66

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Solution

The fourth proportional to 361,809.61, 542,740.54 and 95,566.66 is: 143,356.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,809.61 : 542,740.54 = 95,566.66 : x
  2. Step 2: Convert to fraction form
    361,809.61/542,740.54 = 95,566.66/x
  3. Step 3: Cross multiply
    361,809.61x = 542,740.54 × 95,566.66
  4. Step 4: Simplify right side
    361,809.61x = 51,867,900,654.40
  5. Step 5: Solve for x
    x = 51,867,900,654.40/361,809.61
  6. Step 6: Final answer
    x = 143,356.89

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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.