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Finding the Fourth Proportional to 159,918.17, 220,685.63 and 88,296.63

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Solution

The fourth proportional to 159,918.17, 220,685.63 and 88,296.63 is: 121,848.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,918.17 : 220,685.63 = 88,296.63 : x
  2. Step 2: Convert to fraction form
    159,918.17/220,685.63 = 88,296.63/x
  3. Step 3: Cross multiply
    159,918.17x = 220,685.63 × 88,296.63
  4. Step 4: Simplify right side
    159,918.17x = 19,485,796,976.94
  5. Step 5: Solve for x
    x = 19,485,796,976.94/159,918.17
  6. Step 6: Final answer
    x = 121,848.55

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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.