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Finding the Fourth Proportional to 73,811.97, 101,864.93 and 55,878.57

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Solution

The fourth proportional to 73,811.97, 101,864.93 and 55,878.57 is: 77,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,811.97 : 101,864.93 = 55,878.57 : x
  2. Step 2: Convert to fraction form
    73,811.97/101,864.93 = 55,878.57/x
  3. Step 3: Cross multiply
    73,811.97x = 101,864.93 × 55,878.57
  4. Step 4: Simplify right side
    73,811.97x = 5,692,066,342.16
  5. Step 5: Solve for x
    x = 5,692,066,342.16/73,811.97
  6. Step 6: Final answer
    x = 77,115.76

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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.