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Finding the Fourth Proportional to 247,068.19, 340,990.67 and 156,432.59

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Solution

The fourth proportional to 247,068.19, 340,990.67 and 156,432.59 is: 215,900.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,068.19 : 340,990.67 = 156,432.59 : x
  2. Step 2: Convert to fraction form
    247,068.19/340,990.67 = 156,432.59/x
  3. Step 3: Cross multiply
    247,068.19x = 340,990.67 × 156,432.59
  4. Step 4: Simplify right side
    247,068.19x = 53,342,052,360.06
  5. Step 5: Solve for x
    x = 53,342,052,360.06/247,068.19
  6. Step 6: Final answer
    x = 215,900.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.