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Finding the Fourth Proportional to 153,806.52, 212,267.61 and 93,363.27

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Solution

The fourth proportional to 153,806.52, 212,267.61 and 93,363.27 is: 128,850.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,806.52 : 212,267.61 = 93,363.27 : x
  2. Step 2: Convert to fraction form
    153,806.52/212,267.61 = 93,363.27/x
  3. Step 3: Cross multiply
    153,806.52x = 212,267.61 × 93,363.27
  4. Step 4: Simplify right side
    153,806.52x = 19,817,998,184.68
  5. Step 5: Solve for x
    x = 19,817,998,184.68/153,806.52
  6. Step 6: Final answer
    x = 128,850.18

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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.