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Finding the Fourth Proportional to 89,101.90, 122,960.28 and 48,818.17

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Solution

The fourth proportional to 89,101.90, 122,960.28 and 48,818.17 is: 67,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,101.90 : 122,960.28 = 48,818.17 : x
  2. Step 2: Convert to fraction form
    89,101.90/122,960.28 = 48,818.17/x
  3. Step 3: Cross multiply
    89,101.90x = 122,960.28 × 48,818.17
  4. Step 4: Simplify right side
    89,101.90x = 6,002,695,852.29
  5. Step 5: Solve for x
    x = 6,002,695,852.29/89,101.90
  6. Step 6: Final answer
    x = 67,368.89

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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.