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Finding the Fourth Proportional to 112,000.40, 168,065.40 and 41,886.80

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Solution

The fourth proportional to 112,000.40, 168,065.40 and 41,886.80 is: 62,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,000.40 : 168,065.40 = 41,886.80 : x
  2. Step 2: Convert to fraction form
    112,000.40/168,065.40 = 41,886.80/x
  3. Step 3: Cross multiply
    112,000.40x = 168,065.40 × 41,886.80
  4. Step 4: Simplify right side
    112,000.40x = 7,039,721,796.72
  5. Step 5: Solve for x
    x = 7,039,721,796.72/112,000.40
  6. Step 6: Final answer
    x = 62,854.43

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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.