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Finding the Fourth Proportional to 134,802.72, 186,026.52 and 74,373.90

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Solution

The fourth proportional to 134,802.72, 186,026.52 and 74,373.90 is: 102,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,802.72 : 186,026.52 = 74,373.90 : x
  2. Step 2: Convert to fraction form
    134,802.72/186,026.52 = 74,373.90/x
  3. Step 3: Cross multiply
    134,802.72x = 186,026.52 × 74,373.90
  4. Step 4: Simplify right side
    134,802.72x = 13,835,517,795.83
  5. Step 5: Solve for x
    x = 13,835,517,795.83/134,802.72
  6. Step 6: Final answer
    x = 102,635.30

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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.