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Finding the Fourth Proportional to 88,715.66, 122,426.89 and 48,428.84

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Solution

The fourth proportional to 88,715.66, 122,426.89 and 48,428.84 is: 66,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,715.66 : 122,426.89 = 48,428.84 : x
  2. Step 2: Convert to fraction form
    88,715.66/122,426.89 = 48,428.84/x
  3. Step 3: Cross multiply
    88,715.66x = 122,426.89 × 48,428.84
  4. Step 4: Simplify right side
    88,715.66x = 5,928,992,036.26
  5. Step 5: Solve for x
    x = 5,928,992,036.26/88,715.66
  6. Step 6: Final answer
    x = 66,831.41

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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.