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Finding the Fourth Proportional to 92,215.80, 138,323.70 and 63,675.45

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Solution

The fourth proportional to 92,215.80, 138,323.70 and 63,675.45 is: 95,513.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,215.80 : 138,323.70 = 63,675.45 : x
  2. Step 2: Convert to fraction form
    92,215.80/138,323.70 = 63,675.45/x
  3. Step 3: Cross multiply
    92,215.80x = 138,323.70 × 63,675.45
  4. Step 4: Simplify right side
    92,215.80x = 8,807,823,843.17
  5. Step 5: Solve for x
    x = 8,807,823,843.17/92,215.80
  6. Step 6: Final answer
    x = 95,513.18

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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.