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Finding the Fourth Proportional to 127,629, 191,445.12 and 44,523

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Solution

The fourth proportional to 127,629, 191,445.12 and 44,523 is: 66,785.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,629 : 191,445.12 = 44,523 : x
  2. Step 2: Convert to fraction form
    127,629/191,445.12 = 44,523/x
  3. Step 3: Cross multiply
    127,629x = 191,445.12 × 44,523
  4. Step 4: Simplify right side
    127,629x = 8,523,711,077.76
  5. Step 5: Solve for x
    x = 8,523,711,077.76/127,629
  6. Step 6: Final answer
    x = 66,785.07

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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.