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Finding the Fourth Proportional to 127,894.60, 176,448.27 and 74,150.02

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Solution

The fourth proportional to 127,894.60, 176,448.27 and 74,150.02 is: 102,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,894.60 : 176,448.27 = 74,150.02 : x
  2. Step 2: Convert to fraction form
    127,894.60/176,448.27 = 74,150.02/x
  3. Step 3: Cross multiply
    127,894.60x = 176,448.27 × 74,150.02
  4. Step 4: Simplify right side
    127,894.60x = 13,083,642,749.47
  5. Step 5: Solve for x
    x = 13,083,642,749.47/127,894.60
  6. Step 6: Final answer
    x = 102,300.20

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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.