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Finding the Fourth Proportional to 188,644.55, 260,437.07 and 125,068.46

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Solution

The fourth proportional to 188,644.55, 260,437.07 and 125,068.46 is: 172,665.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,644.55 : 260,437.07 = 125,068.46 : x
  2. Step 2: Convert to fraction form
    188,644.55/260,437.07 = 125,068.46/x
  3. Step 3: Cross multiply
    188,644.55x = 260,437.07 × 125,068.46
  4. Step 4: Simplify right side
    188,644.55x = 32,572,462,282.30
  5. Step 5: Solve for x
    x = 32,572,462,282.30/188,644.55
  6. Step 6: Final answer
    x = 172,665.81

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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.