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Finding the Fourth Proportional to 191,143.60, 286,751.70 and 63,067.66

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Solution

The fourth proportional to 191,143.60, 286,751.70 and 63,067.66 is: 94,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,143.60 : 286,751.70 = 63,067.66 : x
  2. Step 2: Convert to fraction form
    191,143.60/286,751.70 = 63,067.66/x
  3. Step 3: Cross multiply
    191,143.60x = 286,751.70 × 63,067.66
  4. Step 4: Simplify right side
    191,143.60x = 18,084,758,720.02
  5. Step 5: Solve for x
    x = 18,084,758,720.02/191,143.60
  6. Step 6: Final answer
    x = 94,613.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.