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Finding the Fourth Proportional to 247,777.79, 341,904.33 and 145,780.83

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Solution

The fourth proportional to 247,777.79, 341,904.33 and 145,780.83 is: 201,160.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,777.79 : 341,904.33 = 145,780.83 : x
  2. Step 2: Convert to fraction form
    247,777.79/341,904.33 = 145,780.83/x
  3. Step 3: Cross multiply
    247,777.79x = 341,904.33 × 145,780.83
  4. Step 4: Simplify right side
    247,777.79x = 49,843,097,007.99
  5. Step 5: Solve for x
    x = 49,843,097,007.99/247,777.79
  6. Step 6: Final answer
    x = 201,160.48

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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.