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Finding the Fourth Proportional to 124,364.57, 171,627.71 and 70,658.69

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Solution

The fourth proportional to 124,364.57, 171,627.71 and 70,658.69 is: 97,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,364.57 : 171,627.71 = 70,658.69 : x
  2. Step 2: Convert to fraction form
    124,364.57/171,627.71 = 70,658.69/x
  3. Step 3: Cross multiply
    124,364.57x = 171,627.71 × 70,658.69
  4. Step 4: Simplify right side
    124,364.57x = 12,126,987,944.87
  5. Step 5: Solve for x
    x = 12,126,987,944.87/124,364.57
  6. Step 6: Final answer
    x = 97,511.60

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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.