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Finding the Fourth Proportional to 161,066.94, 222,275.91 and 89,445.90

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Solution

The fourth proportional to 161,066.94, 222,275.91 and 89,445.90 is: 123,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,066.94 : 222,275.91 = 89,445.90 : x
  2. Step 2: Convert to fraction form
    161,066.94/222,275.91 = 89,445.90/x
  3. Step 3: Cross multiply
    161,066.94x = 222,275.91 × 89,445.90
  4. Step 4: Simplify right side
    161,066.94x = 19,881,668,818.27
  5. Step 5: Solve for x
    x = 19,881,668,818.27/161,066.94
  6. Step 6: Final answer
    x = 123,437.30

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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.