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Finding the Fourth Proportional to 245,898.60, 368,891.10 and 88,218.60

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Solution

The fourth proportional to 245,898.60, 368,891.10 and 88,218.60 is: 132,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,898.60 : 368,891.10 = 88,218.60 : x
  2. Step 2: Convert to fraction form
    245,898.60/368,891.10 = 88,218.60/x
  3. Step 3: Cross multiply
    245,898.60x = 368,891.10 × 88,218.60
  4. Step 4: Simplify right side
    245,898.60x = 32,543,056,394.46
  5. Step 5: Solve for x
    x = 32,543,056,394.46/245,898.60
  6. Step 6: Final answer
    x = 132,343.40

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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.