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Finding the Fourth Proportional to 169,270.76, 253,531.72 and 69,127.32

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Solution

The fourth proportional to 169,270.76, 253,531.72 and 69,127.32 is: 103,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,270.76 : 253,531.72 = 69,127.32 : x
  2. Step 2: Convert to fraction form
    169,270.76/253,531.72 = 69,127.32/x
  3. Step 3: Cross multiply
    169,270.76x = 253,531.72 × 69,127.32
  4. Step 4: Simplify right side
    169,270.76x = 17,525,969,375.74
  5. Step 5: Solve for x
    x = 17,525,969,375.74/169,270.76
  6. Step 6: Final answer
    x = 103,538.08

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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.