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Finding the Fourth Proportional to 368,755.76, 553,248.48 and 132,100.40

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Solution

The fourth proportional to 368,755.76, 553,248.48 and 132,100.40 is: 198,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,755.76 : 553,248.48 = 132,100.40 : x
  2. Step 2: Convert to fraction form
    368,755.76/553,248.48 = 132,100.40/x
  3. Step 3: Cross multiply
    368,755.76x = 553,248.48 × 132,100.40
  4. Step 4: Simplify right side
    368,755.76x = 73,084,345,507.39
  5. Step 5: Solve for x
    x = 73,084,345,507.39/368,755.76
  6. Step 6: Final answer
    x = 198,191.74

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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.