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Finding the Fourth Proportional to 124,506.96, 171,819.66 and 70,790.64

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Solution

The fourth proportional to 124,506.96, 171,819.66 and 70,790.64 is: 97,691.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,506.96 : 171,819.66 = 70,790.64 : x
  2. Step 2: Convert to fraction form
    124,506.96/171,819.66 = 70,790.64/x
  3. Step 3: Cross multiply
    124,506.96x = 171,819.66 × 70,790.64
  4. Step 4: Simplify right side
    124,506.96x = 12,163,223,695.98
  5. Step 5: Solve for x
    x = 12,163,223,695.98/124,506.96
  6. Step 6: Final answer
    x = 97,691.11

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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.