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Finding the Fourth Proportional to 583,940.74, 875,909.19 and 140,708.74

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Solution

The fourth proportional to 583,940.74, 875,909.19 and 140,708.74 is: 211,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,940.74 : 875,909.19 = 140,708.74 : x
  2. Step 2: Convert to fraction form
    583,940.74/875,909.19 = 140,708.74/x
  3. Step 3: Cross multiply
    583,940.74x = 875,909.19 × 140,708.74
  4. Step 4: Simplify right side
    583,940.74x = 123,248,078,479.32
  5. Step 5: Solve for x
    x = 123,248,078,479.32/583,940.74
  6. Step 6: Final answer
    x = 211,062.65

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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.