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Finding the Fourth Proportional to 77,752.48, 107,366.16 and 60,956.32

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Solution

The fourth proportional to 77,752.48, 107,366.16 and 60,956.32 is: 84,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,752.48 : 107,366.16 = 60,956.32 : x
  2. Step 2: Convert to fraction form
    77,752.48/107,366.16 = 60,956.32/x
  3. Step 3: Cross multiply
    77,752.48x = 107,366.16 × 60,956.32
  4. Step 4: Simplify right side
    77,752.48x = 6,544,646,006.13
  5. Step 5: Solve for x
    x = 6,544,646,006.13/77,752.48
  6. Step 6: Final answer
    x = 84,172.83

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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.