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Finding the Fourth Proportional to 78,043.67, 107,705.88 and 44,055.05

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Solution

The fourth proportional to 78,043.67, 107,705.88 and 44,055.05 is: 60,799.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,043.67 : 107,705.88 = 44,055.05 : x
  2. Step 2: Convert to fraction form
    78,043.67/107,705.88 = 44,055.05/x
  3. Step 3: Cross multiply
    78,043.67x = 107,705.88 × 44,055.05
  4. Step 4: Simplify right side
    78,043.67x = 4,744,987,708.42
  5. Step 5: Solve for x
    x = 4,744,987,708.42/78,043.67
  6. Step 6: Final answer
    x = 60,799.14

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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.