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Finding the Fourth Proportional to 169,718.95, 254,578.41 and 43,359.46

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Solution

The fourth proportional to 169,718.95, 254,578.41 and 43,359.46 is: 65,039.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,718.95 : 254,578.41 = 43,359.46 : x
  2. Step 2: Convert to fraction form
    169,718.95/254,578.41 = 43,359.46/x
  3. Step 3: Cross multiply
    169,718.95x = 254,578.41 × 43,359.46
  4. Step 4: Simplify right side
    169,718.95x = 11,038,382,385.26
  5. Step 5: Solve for x
    x = 11,038,382,385.26/169,718.95
  6. Step 6: Final answer
    x = 65,039.19

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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.