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Finding the Fourth Proportional to 207,773.70, 286,752.96 and 117,147.12

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Solution

The fourth proportional to 207,773.70, 286,752.96 and 117,147.12 is: 161,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,773.70 : 286,752.96 = 117,147.12 : x
  2. Step 2: Convert to fraction form
    207,773.70/286,752.96 = 117,147.12/x
  3. Step 3: Cross multiply
    207,773.70x = 286,752.96 × 117,147.12
  4. Step 4: Simplify right side
    207,773.70x = 33,592,283,415.48
  5. Step 5: Solve for x
    x = 33,592,283,415.48/207,773.70
  6. Step 6: Final answer
    x = 161,677.26

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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.