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Finding the Fourth Proportional to 161,124.77, 222,346 and 89,509.30

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Solution

The fourth proportional to 161,124.77, 222,346 and 89,509.30 is: 123,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,124.77 : 222,346 = 89,509.30 : x
  2. Step 2: Convert to fraction form
    161,124.77/222,346 = 89,509.30/x
  3. Step 3: Cross multiply
    161,124.77x = 222,346 × 89,509.30
  4. Step 4: Simplify right side
    161,124.77x = 19,902,034,817.80
  5. Step 5: Solve for x
    x = 19,902,034,817.80/161,124.77
  6. Step 6: Final answer
    x = 123,519.40

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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.