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Finding the Fourth Proportional to 89,064.70, 133,618.65 and 62,820.70

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Solution

The fourth proportional to 89,064.70, 133,618.65 and 62,820.70 is: 94,246.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,064.70 : 133,618.65 = 62,820.70 : x
  2. Step 2: Convert to fraction form
    89,064.70/133,618.65 = 62,820.70/x
  3. Step 3: Cross multiply
    89,064.70x = 133,618.65 × 62,820.70
  4. Step 4: Simplify right side
    89,064.70x = 8,394,017,126.06
  5. Step 5: Solve for x
    x = 8,394,017,126.06/89,064.70
  6. Step 6: Final answer
    x = 94,246.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.