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Finding the Fourth Proportional to 127,475.65, 175,953.48 and 85,034.08

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Solution

The fourth proportional to 127,475.65, 175,953.48 and 85,034.08 is: 117,371.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,475.65 : 175,953.48 = 85,034.08 : x
  2. Step 2: Convert to fraction form
    127,475.65/175,953.48 = 85,034.08/x
  3. Step 3: Cross multiply
    127,475.65x = 175,953.48 × 85,034.08
  4. Step 4: Simplify right side
    127,475.65x = 14,962,042,294.60
  5. Step 5: Solve for x
    x = 14,962,042,294.60/127,475.65
  6. Step 6: Final answer
    x = 117,371.77

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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.