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Finding the Fourth Proportional to 372,287.60, 558,431.40 and 106,044.65

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Solution

The fourth proportional to 372,287.60, 558,431.40 and 106,044.65 is: 159,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,287.60 : 558,431.40 = 106,044.65 : x
  2. Step 2: Convert to fraction form
    372,287.60/558,431.40 = 106,044.65/x
  3. Step 3: Cross multiply
    372,287.60x = 558,431.40 × 106,044.65
  4. Step 4: Simplify right side
    372,287.60x = 59,218,662,362.01
  5. Step 5: Solve for x
    x = 59,218,662,362.01/372,287.60
  6. Step 6: Final answer
    x = 159,066.98

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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.