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Finding the Fourth Proportional to 356,275.50, 534,646.53 and 134,659.50

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Solution

The fourth proportional to 356,275.50, 534,646.53 and 134,659.50 is: 202,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,275.50 : 534,646.53 = 134,659.50 : x
  2. Step 2: Convert to fraction form
    356,275.50/534,646.53 = 134,659.50/x
  3. Step 3: Cross multiply
    356,275.50x = 534,646.53 × 134,659.50
  4. Step 4: Simplify right side
    356,275.50x = 71,995,234,406.54
  5. Step 5: Solve for x
    x = 71,995,234,406.54/356,275.50
  6. Step 6: Final answer
    x = 202,077.42

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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.