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Finding the Fourth Proportional to 124,418.76, 171,706.14 and 70,703.88

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Solution

The fourth proportional to 124,418.76, 171,706.14 and 70,703.88 is: 97,576.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,418.76 : 171,706.14 = 70,703.88 : x
  2. Step 2: Convert to fraction form
    124,418.76/171,706.14 = 70,703.88/x
  3. Step 3: Cross multiply
    124,418.76x = 171,706.14 × 70,703.88
  4. Step 4: Simplify right side
    124,418.76x = 12,140,290,317.82
  5. Step 5: Solve for x
    x = 12,140,290,317.82/124,418.76
  6. Step 6: Final answer
    x = 97,576.04

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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.