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Finding the Fourth Proportional to 136,594.98, 188,503.40 and 75,348.20

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Solution

The fourth proportional to 136,594.98, 188,503.40 and 75,348.20 is: 103,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,594.98 : 188,503.40 = 75,348.20 : x
  2. Step 2: Convert to fraction form
    136,594.98/188,503.40 = 75,348.20/x
  3. Step 3: Cross multiply
    136,594.98x = 188,503.40 × 75,348.20
  4. Step 4: Simplify right side
    136,594.98x = 14,203,391,883.88
  5. Step 5: Solve for x
    x = 14,203,391,883.88/136,594.98
  6. Step 6: Final answer
    x = 103,981.80

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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.