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Finding the Fourth Proportional to 197,191.84, 272,124.72 and 107,767.84

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Solution

The fourth proportional to 197,191.84, 272,124.72 and 107,767.84 is: 148,719.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,191.84 : 272,124.72 = 107,767.84 : x
  2. Step 2: Convert to fraction form
    197,191.84/272,124.72 = 107,767.84/x
  3. Step 3: Cross multiply
    197,191.84x = 272,124.72 × 107,767.84
  4. Step 4: Simplify right side
    197,191.84x = 29,326,293,285.00
  5. Step 5: Solve for x
    x = 29,326,293,285.00/197,191.84
  6. Step 6: Final answer
    x = 148,719.61

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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.