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Finding the Fourth Proportional to 175,633.65, 242,314.74 and 99,143.73

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Solution

The fourth proportional to 175,633.65, 242,314.74 and 99,143.73 is: 136,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,633.65 : 242,314.74 = 99,143.73 : x
  2. Step 2: Convert to fraction form
    175,633.65/242,314.74 = 99,143.73/x
  3. Step 3: Cross multiply
    175,633.65x = 242,314.74 × 99,143.73
  4. Step 4: Simplify right side
    175,633.65x = 24,023,987,157.58
  5. Step 5: Solve for x
    x = 24,023,987,157.58/175,633.65
  6. Step 6: Final answer
    x = 136,784.65

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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.