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Finding the Fourth Proportional to 193,159.20, 289,825.20 and 93,280.80

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Solution

The fourth proportional to 193,159.20, 289,825.20 and 93,280.80 is: 139,962.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,159.20 : 289,825.20 = 93,280.80 : x
  2. Step 2: Convert to fraction form
    193,159.20/289,825.20 = 93,280.80/x
  3. Step 3: Cross multiply
    193,159.20x = 289,825.20 × 93,280.80
  4. Step 4: Simplify right side
    193,159.20x = 27,035,126,516.16
  5. Step 5: Solve for x
    x = 27,035,126,516.16/193,159.20
  6. Step 6: Final answer
    x = 139,962.92

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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.