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Finding the Fourth Proportional to 77,754.84, 107,334.18 and 52,618.92

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Solution

The fourth proportional to 77,754.84, 107,334.18 and 52,618.92 is: 72,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,754.84 : 107,334.18 = 52,618.92 : x
  2. Step 2: Convert to fraction form
    77,754.84/107,334.18 = 52,618.92/x
  3. Step 3: Cross multiply
    77,754.84x = 107,334.18 × 52,618.92
  4. Step 4: Simplify right side
    77,754.84x = 5,647,808,630.69
  5. Step 5: Solve for x
    x = 5,647,808,630.69/77,754.84
  6. Step 6: Final answer
    x = 72,636.10

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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.