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Finding the Fourth Proportional to 124,419.76, 171,707.52 and 70,704.88

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Solution

The fourth proportional to 124,419.76, 171,707.52 and 70,704.88 is: 97,577.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,419.76 : 171,707.52 = 70,704.88 : x
  2. Step 2: Convert to fraction form
    124,419.76/171,707.52 = 70,704.88/x
  3. Step 3: Cross multiply
    124,419.76x = 171,707.52 × 70,704.88
  4. Step 4: Simplify right side
    124,419.76x = 12,140,559,596.70
  5. Step 5: Solve for x
    x = 12,140,559,596.70/124,419.76
  6. Step 6: Final answer
    x = 97,577.42

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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.