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Finding the Fourth Proportional to 187,312.80, 280,724.04 and 163,560.48

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Solution

The fourth proportional to 187,312.80, 280,724.04 and 163,560.48 is: 245,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,312.80 : 280,724.04 = 163,560.48 : x
  2. Step 2: Convert to fraction form
    187,312.80/280,724.04 = 163,560.48/x
  3. Step 3: Cross multiply
    187,312.80x = 280,724.04 × 163,560.48
  4. Step 4: Simplify right side
    187,312.80x = 45,915,358,729.94
  5. Step 5: Solve for x
    x = 45,915,358,729.94/187,312.80
  6. Step 6: Final answer
    x = 245,126.65

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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.