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Finding the Fourth Proportional to 117,818.01, 176,774.13 and 42,943.50

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Solution

The fourth proportional to 117,818.01, 176,774.13 and 42,943.50 is: 64,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,818.01 : 176,774.13 = 42,943.50 : x
  2. Step 2: Convert to fraction form
    117,818.01/176,774.13 = 42,943.50/x
  3. Step 3: Cross multiply
    117,818.01x = 176,774.13 × 42,943.50
  4. Step 4: Simplify right side
    117,818.01x = 7,591,299,851.66
  5. Step 5: Solve for x
    x = 7,591,299,851.66/117,818.01
  6. Step 6: Final answer
    x = 64,432.42

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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.