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Finding the Fourth Proportional to 169,139.98, 253,526.58 and 84,696.57

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Solution

The fourth proportional to 169,139.98, 253,526.58 and 84,696.57 is: 126,953.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,139.98 : 253,526.58 = 84,696.57 : x
  2. Step 2: Convert to fraction form
    169,139.98/253,526.58 = 84,696.57/x
  3. Step 3: Cross multiply
    169,139.98x = 253,526.58 × 84,696.57
  4. Step 4: Simplify right side
    169,139.98x = 21,472,831,729.83
  5. Step 5: Solve for x
    x = 21,472,831,729.83/169,139.98
  6. Step 6: Final answer
    x = 126,953.02

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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.