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Finding the Fourth Proportional to 127,954.86, 176,612.85 and 74,257.17

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Solution

The fourth proportional to 127,954.86, 176,612.85 and 74,257.17 is: 102,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,954.86 : 176,612.85 = 74,257.17 : x
  2. Step 2: Convert to fraction form
    127,954.86/176,612.85 = 74,257.17/x
  3. Step 3: Cross multiply
    127,954.86x = 176,612.85 × 74,257.17
  4. Step 4: Simplify right side
    127,954.86x = 13,114,770,426.63
  5. Step 5: Solve for x
    x = 13,114,770,426.63/127,954.86
  6. Step 6: Final answer
    x = 102,495.29

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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.