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Finding the Fourth Proportional to 124,693.62, 172,034.52 and 70,965.14

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Solution

The fourth proportional to 124,693.62, 172,034.52 and 70,965.14 is: 97,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,693.62 : 172,034.52 = 70,965.14 : x
  2. Step 2: Convert to fraction form
    124,693.62/172,034.52 = 70,965.14/x
  3. Step 3: Cross multiply
    124,693.62x = 172,034.52 × 70,965.14
  4. Step 4: Simplify right side
    124,693.62x = 12,208,453,796.63
  5. Step 5: Solve for x
    x = 12,208,453,796.63/124,693.62
  6. Step 6: Final answer
    x = 97,907.61

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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.