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Finding the Fourth Proportional to 127,176.48, 175,471.92 and 70,573.68

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Solution

The fourth proportional to 127,176.48, 175,471.92 and 70,573.68 is: 97,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,176.48 : 175,471.92 = 70,573.68 : x
  2. Step 2: Convert to fraction form
    127,176.48/175,471.92 = 70,573.68/x
  3. Step 3: Cross multiply
    127,176.48x = 175,471.92 × 70,573.68
  4. Step 4: Simplify right side
    127,176.48x = 12,383,699,131.07
  5. Step 5: Solve for x
    x = 12,383,699,131.07/127,176.48
  6. Step 6: Final answer
    x = 97,374.13

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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.