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Finding the Fourth Proportional to 77,813.62, 107,383.29 and 44,279.62

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Solution

The fourth proportional to 77,813.62, 107,383.29 and 44,279.62 is: 61,106.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,813.62 : 107,383.29 = 44,279.62 : x
  2. Step 2: Convert to fraction form
    77,813.62/107,383.29 = 44,279.62/x
  3. Step 3: Cross multiply
    77,813.62x = 107,383.29 × 44,279.62
  4. Step 4: Simplify right side
    77,813.62x = 4,754,891,275.55
  5. Step 5: Solve for x
    x = 4,754,891,275.55/77,813.62
  6. Step 6: Final answer
    x = 61,106.16

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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.