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Finding the Fourth Proportional to 218,049.60, 300,728.39 and 153,733.17

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Solution

The fourth proportional to 218,049.60, 300,728.39 and 153,733.17 is: 212,024.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,049.60 : 300,728.39 = 153,733.17 : x
  2. Step 2: Convert to fraction form
    218,049.60/300,728.39 = 153,733.17/x
  3. Step 3: Cross multiply
    218,049.60x = 300,728.39 × 153,733.17
  4. Step 4: Simplify right side
    218,049.60x = 46,231,927,935.03
  5. Step 5: Solve for x
    x = 46,231,927,935.03/218,049.60
  6. Step 6: Final answer
    x = 212,024.82

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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.