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Finding the Fourth Proportional to 209,959.70, 314,874.95 and 60,159.85

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Solution

The fourth proportional to 209,959.70, 314,874.95 and 60,159.85 is: 90,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,959.70 : 314,874.95 = 60,159.85 : x
  2. Step 2: Convert to fraction form
    209,959.70/314,874.95 = 60,159.85/x
  3. Step 3: Cross multiply
    209,959.70x = 314,874.95 × 60,159.85
  4. Step 4: Simplify right side
    209,959.70x = 18,942,828,672.77
  5. Step 5: Solve for x
    x = 18,942,828,672.77/209,959.70
  6. Step 6: Final answer
    x = 90,221.26

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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.