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Finding the Fourth Proportional to 111,759.34, 154,223.19 and 63,364.52

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Solution

The fourth proportional to 111,759.34, 154,223.19 and 63,364.52 is: 87,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,759.34 : 154,223.19 = 63,364.52 : x
  2. Step 2: Convert to fraction form
    111,759.34/154,223.19 = 63,364.52/x
  3. Step 3: Cross multiply
    111,759.34x = 154,223.19 × 63,364.52
  4. Step 4: Simplify right side
    111,759.34x = 9,772,278,359.02
  5. Step 5: Solve for x
    x = 9,772,278,359.02/111,759.34
  6. Step 6: Final answer
    x = 87,440.38

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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.