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Finding the Fourth Proportional to 114,441.64, 157,947.78 and 66,722.92

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Solution

The fourth proportional to 114,441.64, 157,947.78 and 66,722.92 is: 92,088.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,441.64 : 157,947.78 = 66,722.92 : x
  2. Step 2: Convert to fraction form
    114,441.64/157,947.78 = 66,722.92/x
  3. Step 3: Cross multiply
    114,441.64x = 157,947.78 × 66,722.92
  4. Step 4: Simplify right side
    114,441.64x = 10,538,737,089.12
  5. Step 5: Solve for x
    x = 10,538,737,089.12/114,441.64
  6. Step 6: Final answer
    x = 92,088.31

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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.