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Finding the Fourth Proportional to 478,006.97, 717,133.46 and 141,034.01

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Solution

The fourth proportional to 478,006.97, 717,133.46 and 141,034.01 is: 211,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,006.97 : 717,133.46 = 141,034.01 : x
  2. Step 2: Convert to fraction form
    478,006.97/717,133.46 = 141,034.01/x
  3. Step 3: Cross multiply
    478,006.97x = 717,133.46 × 141,034.01
  4. Step 4: Simplify right side
    478,006.97x = 101,140,203,278.14
  5. Step 5: Solve for x
    x = 101,140,203,278.14/478,006.97
  6. Step 6: Final answer
    x = 211,587.30

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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.