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Finding the Fourth Proportional to 358,812.60, 538,121.70 and 106,092.60

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Solution

The fourth proportional to 358,812.60, 538,121.70 and 106,092.60 is: 159,110.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,812.60 : 538,121.70 = 106,092.60 : x
  2. Step 2: Convert to fraction form
    358,812.60/538,121.70 = 106,092.60/x
  3. Step 3: Cross multiply
    358,812.60x = 538,121.70 × 106,092.60
  4. Step 4: Simplify right side
    358,812.60x = 57,090,730,269.42
  5. Step 5: Solve for x
    x = 57,090,730,269.42/358,812.60
  6. Step 6: Final answer
    x = 159,110.16

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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.