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Finding the Fourth Proportional to 312,373.70, 468,560.61 and 112,694.02

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Solution

The fourth proportional to 312,373.70, 468,560.61 and 112,694.02 is: 169,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,373.70 : 468,560.61 = 112,694.02 : x
  2. Step 2: Convert to fraction form
    312,373.70/468,560.61 = 112,694.02/x
  3. Step 3: Cross multiply
    312,373.70x = 468,560.61 × 112,694.02
  4. Step 4: Simplify right side
    312,373.70x = 52,803,976,959.68
  5. Step 5: Solve for x
    x = 52,803,976,959.68/312,373.70
  6. Step 6: Final answer
    x = 169,041.05

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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.