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Finding the Fourth Proportional to 124,484.85, 171,772.88 and 70,768.71

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Solution

The fourth proportional to 124,484.85, 171,772.88 and 70,768.71 is: 97,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,484.85 : 171,772.88 = 70,768.71 : x
  2. Step 2: Convert to fraction form
    124,484.85/171,772.88 = 70,768.71/x
  3. Step 3: Cross multiply
    124,484.85x = 171,772.88 × 70,768.71
  4. Step 4: Simplify right side
    124,484.85x = 12,156,144,776.74
  5. Step 5: Solve for x
    x = 12,156,144,776.74/124,484.85
  6. Step 6: Final answer
    x = 97,651.60

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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.