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Finding the Fourth Proportional to 77,358.87, 106,752.20 and 43,824.87

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Solution

The fourth proportional to 77,358.87, 106,752.20 and 43,824.87 is: 60,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,358.87 : 106,752.20 = 43,824.87 : x
  2. Step 2: Convert to fraction form
    77,358.87/106,752.20 = 43,824.87/x
  3. Step 3: Cross multiply
    77,358.87x = 106,752.20 × 43,824.87
  4. Step 4: Simplify right side
    77,358.87x = 4,678,401,068.09
  5. Step 5: Solve for x
    x = 4,678,401,068.09/77,358.87
  6. Step 6: Final answer
    x = 60,476.60

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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.