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Finding the Fourth Proportional to 615,189.10, 922,127.55 and 235,963.30

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Solution

The fourth proportional to 615,189.10, 922,127.55 and 235,963.30 is: 353,693.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,189.10 : 922,127.55 = 235,963.30 : x
  2. Step 2: Convert to fraction form
    615,189.10/922,127.55 = 235,963.30/x
  3. Step 3: Cross multiply
    615,189.10x = 922,127.55 × 235,963.30
  4. Step 4: Simplify right side
    615,189.10x = 217,588,259,718.92
  5. Step 5: Solve for x
    x = 217,588,259,718.92/615,189.10
  6. Step 6: Final answer
    x = 353,693.29

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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.