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Finding the Fourth Proportional to 91,198.14, 125,831.22 and 53,465.10

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Solution

The fourth proportional to 91,198.14, 125,831.22 and 53,465.10 is: 73,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,198.14 : 125,831.22 = 53,465.10 : x
  2. Step 2: Convert to fraction form
    91,198.14/125,831.22 = 53,465.10/x
  3. Step 3: Cross multiply
    91,198.14x = 125,831.22 × 53,465.10
  4. Step 4: Simplify right side
    91,198.14x = 6,727,578,760.42
  5. Step 5: Solve for x
    x = 6,727,578,760.42/91,198.14
  6. Step 6: Final answer
    x = 73,768.82

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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.