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Finding the Fourth Proportional to 124,515.69, 171,830.85 and 70,800.71

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Solution

The fourth proportional to 124,515.69, 171,830.85 and 70,800.71 is: 97,704.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,515.69 : 171,830.85 = 70,800.71 : x
  2. Step 2: Convert to fraction form
    124,515.69/171,830.85 = 70,800.71/x
  3. Step 3: Cross multiply
    124,515.69x = 171,830.85 × 70,800.71
  4. Step 4: Simplify right side
    124,515.69x = 12,165,745,320.75
  5. Step 5: Solve for x
    x = 12,165,745,320.75/124,515.69
  6. Step 6: Final answer
    x = 97,704.52

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1.5x scale

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.