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Finding the Fourth Proportional to 144,854.58, 199,911.62 and 81,204.68

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Solution

The fourth proportional to 144,854.58, 199,911.62 and 81,204.68 is: 112,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,854.58 : 199,911.62 = 81,204.68 : x
  2. Step 2: Convert to fraction form
    144,854.58/199,911.62 = 81,204.68/x
  3. Step 3: Cross multiply
    144,854.58x = 199,911.62 × 81,204.68
  4. Step 4: Simplify right side
    144,854.58x = 16,233,758,480.28
  5. Step 5: Solve for x
    x = 16,233,758,480.28/144,854.58
  6. Step 6: Final answer
    x = 112,069.35

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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.