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Finding the Fourth Proportional to 344,599.10, 516,898.65 and 157,479.38

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Solution

The fourth proportional to 344,599.10, 516,898.65 and 157,479.38 is: 236,219.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,599.10 : 516,898.65 = 157,479.38 : x
  2. Step 2: Convert to fraction form
    344,599.10/516,898.65 = 157,479.38/x
  3. Step 3: Cross multiply
    344,599.10x = 516,898.65 × 157,479.38
  4. Step 4: Simplify right side
    344,599.10x = 81,400,876,340.34
  5. Step 5: Solve for x
    x = 81,400,876,340.34/344,599.10
  6. Step 6: Final answer
    x = 236,219.07

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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.