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Finding the Fourth Proportional to 74,470.77, 102,726.65 and 47,236.48

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Solution

The fourth proportional to 74,470.77, 102,726.65 and 47,236.48 is: 65,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,470.77 : 102,726.65 = 47,236.48 : x
  2. Step 2: Convert to fraction form
    74,470.77/102,726.65 = 47,236.48/x
  3. Step 3: Cross multiply
    74,470.77x = 102,726.65 × 47,236.48
  4. Step 4: Simplify right side
    74,470.77x = 4,852,445,230.10
  5. Step 5: Solve for x
    x = 4,852,445,230.10/74,470.77
  6. Step 6: Final answer
    x = 65,159.06

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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.