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Finding the Fourth Proportional to 136,265.68, 188,055.84 and 75,841.30

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Solution

The fourth proportional to 136,265.68, 188,055.84 and 75,841.30 is: 104,666.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,265.68 : 188,055.84 = 75,841.30 : x
  2. Step 2: Convert to fraction form
    136,265.68/188,055.84 = 75,841.30/x
  3. Step 3: Cross multiply
    136,265.68x = 188,055.84 × 75,841.30
  4. Step 4: Simplify right side
    136,265.68x = 14,262,399,378.19
  5. Step 5: Solve for x
    x = 14,262,399,378.19/136,265.68
  6. Step 6: Final answer
    x = 104,666.12

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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.