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Finding the Fourth Proportional to 187,853.69, 281,649.29 and 69,509.67

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Solution

The fourth proportional to 187,853.69, 281,649.29 and 69,509.67 is: 104,215.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,853.69 : 281,649.29 = 69,509.67 : x
  2. Step 2: Convert to fraction form
    187,853.69/281,649.29 = 69,509.67/x
  3. Step 3: Cross multiply
    187,853.69x = 281,649.29 × 69,509.67
  4. Step 4: Simplify right side
    187,853.69x = 19,577,348,856.09
  5. Step 5: Solve for x
    x = 19,577,348,856.09/187,853.69
  6. Step 6: Final answer
    x = 104,215.94

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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.