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Finding the Fourth Proportional to 161,497.28, 222,864.07 and 89,877.28

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Solution

The fourth proportional to 161,497.28, 222,864.07 and 89,877.28 is: 124,029.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,497.28 : 222,864.07 = 89,877.28 : x
  2. Step 2: Convert to fraction form
    161,497.28/222,864.07 = 89,877.28/x
  3. Step 3: Cross multiply
    161,497.28x = 222,864.07 × 89,877.28
  4. Step 4: Simplify right side
    161,497.28x = 20,030,415,864.17
  5. Step 5: Solve for x
    x = 20,030,415,864.17/161,497.28
  6. Step 6: Final answer
    x = 124,029.44

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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.