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Finding the Fourth Proportional to 372,908.48, 559,260.45 and 102,972.06

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Solution

The fourth proportional to 372,908.48, 559,260.45 and 102,972.06 is: 154,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,908.48 : 559,260.45 = 102,972.06 : x
  2. Step 2: Convert to fraction form
    372,908.48/559,260.45 = 102,972.06/x
  3. Step 3: Cross multiply
    372,908.48x = 559,260.45 × 102,972.06
  4. Step 4: Simplify right side
    372,908.48x = 57,588,200,613.03
  5. Step 5: Solve for x
    x = 57,588,200,613.03/372,908.48
  6. Step 6: Final answer
    x = 154,429.85

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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.