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Finding the Fourth Proportional to 344,685.32, 517,041.89 and 120,068.48

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Solution

The fourth proportional to 344,685.32, 517,041.89 and 120,068.48 is: 180,107.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,685.32 : 517,041.89 = 120,068.48 : x
  2. Step 2: Convert to fraction form
    344,685.32/517,041.89 = 120,068.48/x
  3. Step 3: Cross multiply
    344,685.32x = 517,041.89 × 120,068.48
  4. Step 4: Simplify right side
    344,685.32x = 62,080,431,543.59
  5. Step 5: Solve for x
    x = 62,080,431,543.59/344,685.32
  6. Step 6: Final answer
    x = 180,107.56

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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.