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Finding the Fourth Proportional to 155,758.24, 214,946.16 and 88,690.24

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Solution

The fourth proportional to 155,758.24, 214,946.16 and 88,690.24 is: 122,392.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,758.24 : 214,946.16 = 88,690.24 : x
  2. Step 2: Convert to fraction form
    155,758.24/214,946.16 = 88,690.24/x
  3. Step 3: Cross multiply
    155,758.24x = 214,946.16 × 88,690.24
  4. Step 4: Simplify right side
    155,758.24x = 19,063,626,517.48
  5. Step 5: Solve for x
    x = 19,063,626,517.48/155,758.24
  6. Step 6: Final answer
    x = 122,392.41

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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.