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Finding the Fourth Proportional to 387,246.62, 581,097.48 and 162,589.79

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Solution

The fourth proportional to 387,246.62, 581,097.48 and 162,589.79 is: 243,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,246.62 : 581,097.48 = 162,589.79 : x
  2. Step 2: Convert to fraction form
    387,246.62/581,097.48 = 162,589.79/x
  3. Step 3: Cross multiply
    387,246.62x = 581,097.48 × 162,589.79
  4. Step 4: Simplify right side
    387,246.62x = 94,480,514,337.24
  5. Step 5: Solve for x
    x = 94,480,514,337.24/387,246.62
  6. Step 6: Final answer
    x = 243,980.22

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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.