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Finding the Fourth Proportional to 243,889.12, 336,597.84 and 148,390.08

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Solution

The fourth proportional to 243,889.12, 336,597.84 and 148,390.08 is: 204,797.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,889.12 : 336,597.84 = 148,390.08 : x
  2. Step 2: Convert to fraction form
    243,889.12/336,597.84 = 148,390.08/x
  3. Step 3: Cross multiply
    243,889.12x = 336,597.84 × 148,390.08
  4. Step 4: Simplify right side
    243,889.12x = 49,947,780,405.43
  5. Step 5: Solve for x
    x = 49,947,780,405.43/243,889.12
  6. Step 6: Final answer
    x = 204,797.08

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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.