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Finding the Fourth Proportional to 125,559.68, 188,186.40 and 69,397.52

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Solution

The fourth proportional to 125,559.68, 188,186.40 and 69,397.52 is: 104,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,559.68 : 188,186.40 = 69,397.52 : x
  2. Step 2: Convert to fraction form
    125,559.68/188,186.40 = 69,397.52/x
  3. Step 3: Cross multiply
    125,559.68x = 188,186.40 × 69,397.52
  4. Step 4: Simplify right side
    125,559.68x = 13,059,669,457.73
  5. Step 5: Solve for x
    x = 13,059,669,457.73/125,559.68
  6. Step 6: Final answer
    x = 104,011.65

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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.