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Finding the Fourth Proportional to 169,535.10, 254,448.45 and 74,910.90

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Solution

The fourth proportional to 169,535.10, 254,448.45 and 74,910.90 is: 112,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,535.10 : 254,448.45 = 74,910.90 : x
  2. Step 2: Convert to fraction form
    169,535.10/254,448.45 = 74,910.90/x
  3. Step 3: Cross multiply
    169,535.10x = 254,448.45 × 74,910.90
  4. Step 4: Simplify right side
    169,535.10x = 19,060,962,393.11
  5. Step 5: Solve for x
    x = 19,060,962,393.11/169,535.10
  6. Step 6: Final answer
    x = 112,430.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.