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Finding the Fourth Proportional to 475,036.04, 712,600.68 and 138,079.46

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Solution

The fourth proportional to 475,036.04, 712,600.68 and 138,079.46 is: 207,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,036.04 : 712,600.68 = 138,079.46 : x
  2. Step 2: Convert to fraction form
    475,036.04/712,600.68 = 138,079.46/x
  3. Step 3: Cross multiply
    475,036.04x = 712,600.68 × 138,079.46
  4. Step 4: Simplify right side
    475,036.04x = 98,395,517,090.03
  5. Step 5: Solve for x
    x = 98,395,517,090.03/475,036.04
  6. Step 6: Final answer
    x = 207,132.74

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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.