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Finding the Fourth Proportional to 144,151.77, 215,926.35 and 115,919.13

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Solution

The fourth proportional to 144,151.77, 215,926.35 and 115,919.13 is: 173,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,151.77 : 215,926.35 = 115,919.13 : x
  2. Step 2: Convert to fraction form
    144,151.77/215,926.35 = 115,919.13/x
  3. Step 3: Cross multiply
    144,151.77x = 215,926.35 × 115,919.13
  4. Step 4: Simplify right side
    144,151.77x = 25,029,994,636.08
  5. Step 5: Solve for x
    x = 25,029,994,636.08/144,151.77
  6. Step 6: Final answer
    x = 173,636.40

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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.