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Finding the Fourth Proportional to 247,178.58, 341,056.13 and 145,220.64

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Solution

The fourth proportional to 247,178.58, 341,056.13 and 145,220.64 is: 200,374.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,178.58 : 341,056.13 = 145,220.64 : x
  2. Step 2: Convert to fraction form
    247,178.58/341,056.13 = 145,220.64/x
  3. Step 3: Cross multiply
    247,178.58x = 341,056.13 × 145,220.64
  4. Step 4: Simplify right side
    247,178.58x = 49,528,387,769.24
  5. Step 5: Solve for x
    x = 49,528,387,769.24/247,178.58
  6. Step 6: Final answer
    x = 200,374.92

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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.