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Finding the Fourth Proportional to 114,486.20, 157,995.06 and 66,731.84

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Solution

The fourth proportional to 114,486.20, 157,995.06 and 66,731.84 is: 92,092.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,486.20 : 157,995.06 = 66,731.84 : x
  2. Step 2: Convert to fraction form
    114,486.20/157,995.06 = 66,731.84/x
  3. Step 3: Cross multiply
    114,486.20x = 157,995.06 × 66,731.84
  4. Step 4: Simplify right side
    114,486.20x = 10,543,301,064.71
  5. Step 5: Solve for x
    x = 10,543,301,064.71/114,486.20
  6. Step 6: Final answer
    x = 92,092.33

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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.