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Finding the Fourth Proportional to 187,205.80, 280,808.70 and 186,039.40

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Solution

The fourth proportional to 187,205.80, 280,808.70 and 186,039.40 is: 279,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,205.80 : 280,808.70 = 186,039.40 : x
  2. Step 2: Convert to fraction form
    187,205.80/280,808.70 = 186,039.40/x
  3. Step 3: Cross multiply
    187,205.80x = 280,808.70 × 186,039.40
  4. Step 4: Simplify right side
    187,205.80x = 52,241,482,062.78
  5. Step 5: Solve for x
    x = 52,241,482,062.78/187,205.80
  6. Step 6: Final answer
    x = 279,059.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.