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Finding the Fourth Proportional to 344,127.90, 516,019.05 and 156,927.90

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Solution

The fourth proportional to 344,127.90, 516,019.05 and 156,927.90 is: 235,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,127.90 : 516,019.05 = 156,927.90 : x
  2. Step 2: Convert to fraction form
    344,127.90/516,019.05 = 156,927.90/x
  3. Step 3: Cross multiply
    344,127.90x = 516,019.05 × 156,927.90
  4. Step 4: Simplify right side
    344,127.90x = 80,977,785,876.50
  5. Step 5: Solve for x
    x = 80,977,785,876.50/344,127.90
  6. Step 6: Final answer
    x = 235,313.05

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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.