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Finding the Fourth Proportional to 187,798.56, 281,697.96 and 45,643.92

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Solution

The fourth proportional to 187,798.56, 281,697.96 and 45,643.92 is: 68,465.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,798.56 : 281,697.96 = 45,643.92 : x
  2. Step 2: Convert to fraction form
    187,798.56/281,697.96 = 45,643.92/x
  3. Step 3: Cross multiply
    187,798.56x = 281,697.96 × 45,643.92
  4. Step 4: Simplify right side
    187,798.56x = 12,857,799,150.40
  5. Step 5: Solve for x
    x = 12,857,799,150.40/187,798.56
  6. Step 6: Final answer
    x = 68,465.91

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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.