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Finding the Fourth Proportional to 78,044.40, 107,674.74 and 44,048.88

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Solution

The fourth proportional to 78,044.40, 107,674.74 and 44,048.88 is: 60,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.40 : 107,674.74 = 44,048.88 : x
  2. Step 2: Convert to fraction form
    78,044.40/107,674.74 = 44,048.88/x
  3. Step 3: Cross multiply
    78,044.40x = 107,674.74 × 44,048.88
  4. Step 4: Simplify right side
    78,044.40x = 4,742,951,701.29
  5. Step 5: Solve for x
    x = 4,742,951,701.29/78,044.40
  6. Step 6: Final answer
    x = 60,772.48

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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.