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Finding the Fourth Proportional to 127,195.76, 175,526.90 and 69,834.80

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Solution

The fourth proportional to 127,195.76, 175,526.90 and 69,834.80 is: 96,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,195.76 : 175,526.90 = 69,834.80 : x
  2. Step 2: Convert to fraction form
    127,195.76/175,526.90 = 69,834.80/x
  3. Step 3: Cross multiply
    127,195.76x = 175,526.90 × 69,834.80
  4. Step 4: Simplify right side
    127,195.76x = 12,257,885,956.12
  5. Step 5: Solve for x
    x = 12,257,885,956.12/127,195.76
  6. Step 6: Final answer
    x = 96,370.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.