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Finding the Fourth Proportional to 183,758.61, 253,613.10 and 103,191.64

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Solution

The fourth proportional to 183,758.61, 253,613.10 and 103,191.64 is: 142,419.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,758.61 : 253,613.10 = 103,191.64 : x
  2. Step 2: Convert to fraction form
    183,758.61/253,613.10 = 103,191.64/x
  3. Step 3: Cross multiply
    183,758.61x = 253,613.10 × 103,191.64
  4. Step 4: Simplify right side
    183,758.61x = 26,170,751,714.48
  5. Step 5: Solve for x
    x = 26,170,751,714.48/183,758.61
  6. Step 6: Final answer
    x = 142,419.19

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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.