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Finding the Fourth Proportional to 187,086.77, 280,740.87 and 68,841.14

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Solution

The fourth proportional to 187,086.77, 280,740.87 and 68,841.14 is: 103,302.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,086.77 : 280,740.87 = 68,841.14 : x
  2. Step 2: Convert to fraction form
    187,086.77/280,740.87 = 68,841.14/x
  3. Step 3: Cross multiply
    187,086.77x = 280,740.87 × 68,841.14
  4. Step 4: Simplify right side
    187,086.77x = 19,326,521,535.39
  5. Step 5: Solve for x
    x = 19,326,521,535.39/187,086.77
  6. Step 6: Final answer
    x = 103,302.45

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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.