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Finding the Fourth Proportional to 144,768.76, 199,780.59 and 81,105.19

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Solution

The fourth proportional to 144,768.76, 199,780.59 and 81,105.19 is: 111,925.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,768.76 : 199,780.59 = 81,105.19 : x
  2. Step 2: Convert to fraction form
    144,768.76/199,780.59 = 81,105.19/x
  3. Step 3: Cross multiply
    144,768.76x = 199,780.59 × 81,105.19
  4. Step 4: Simplify right side
    144,768.76x = 16,203,242,514.96
  5. Step 5: Solve for x
    x = 16,203,242,514.96/144,768.76
  6. Step 6: Final answer
    x = 111,925.00

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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.