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Finding the Fourth Proportional to 68,909.66, 95,110.14 and 42,046.40

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Solution

The fourth proportional to 68,909.66, 95,110.14 and 42,046.40 is: 58,033.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,909.66 : 95,110.14 = 42,046.40 : x
  2. Step 2: Convert to fraction form
    68,909.66/95,110.14 = 42,046.40/x
  3. Step 3: Cross multiply
    68,909.66x = 95,110.14 × 42,046.40
  4. Step 4: Simplify right side
    68,909.66x = 3,999,038,990.50
  5. Step 5: Solve for x
    x = 3,999,038,990.50/68,909.66
  6. Step 6: Final answer
    x = 58,033.07

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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.