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Finding the Fourth Proportional to 68,381.61, 94,253.68 and 45,712.33

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Solution

The fourth proportional to 68,381.61, 94,253.68 and 45,712.33 is: 63,007.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,381.61 : 94,253.68 = 45,712.33 : x
  2. Step 2: Convert to fraction form
    68,381.61/94,253.68 = 45,712.33/x
  3. Step 3: Cross multiply
    68,381.61x = 94,253.68 × 45,712.33
  4. Step 4: Simplify right side
    68,381.61x = 4,308,555,323.87
  5. Step 5: Solve for x
    x = 4,308,555,323.87/68,381.61
  6. Step 6: Final answer
    x = 63,007.52

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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.