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Finding the Fourth Proportional to 79,001.76, 109,017.92 and 43,184.64

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Solution

The fourth proportional to 79,001.76, 109,017.92 and 43,184.64 is: 59,592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,001.76 : 109,017.92 = 43,184.64 : x
  2. Step 2: Convert to fraction form
    79,001.76/109,017.92 = 43,184.64/x
  3. Step 3: Cross multiply
    79,001.76x = 109,017.92 × 43,184.64
  4. Step 4: Simplify right side
    79,001.76x = 4,707,899,628.75
  5. Step 5: Solve for x
    x = 4,707,899,628.75/79,001.76
  6. Step 6: Final answer
    x = 59,592.34

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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.