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Finding the Fourth Proportional to 158,465.75, 218,684.45 and 86,844.24

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Solution

The fourth proportional to 158,465.75, 218,684.45 and 86,844.24 is: 119,846.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,465.75 : 218,684.45 = 86,844.24 : x
  2. Step 2: Convert to fraction form
    158,465.75/218,684.45 = 86,844.24/x
  3. Step 3: Cross multiply
    158,465.75x = 218,684.45 × 86,844.24
  4. Step 4: Simplify right side
    158,465.75x = 18,991,485,077.18
  5. Step 5: Solve for x
    x = 18,991,485,077.18/158,465.75
  6. Step 6: Final answer
    x = 119,846.00

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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.