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Finding the Fourth Proportional to 127,752.96, 176,260.06 and 74,027.60

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Solution

The fourth proportional to 127,752.96, 176,260.06 and 74,027.60 is: 102,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,752.96 : 176,260.06 = 74,027.60 : x
  2. Step 2: Convert to fraction form
    127,752.96/176,260.06 = 74,027.60/x
  3. Step 3: Cross multiply
    127,752.96x = 176,260.06 × 74,027.60
  4. Step 4: Simplify right side
    127,752.96x = 13,048,109,217.66
  5. Step 5: Solve for x
    x = 13,048,109,217.66/127,752.96
  6. Step 6: Final answer
    x = 102,135.47

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1.5x scale

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.