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Finding the Fourth Proportional to 198,303.97, 273,659.48 and 107,659.93

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Solution

The fourth proportional to 198,303.97, 273,659.48 and 107,659.93 is: 148,570.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,303.97 : 273,659.48 = 107,659.93 : x
  2. Step 2: Convert to fraction form
    198,303.97/273,659.48 = 107,659.93/x
  3. Step 3: Cross multiply
    198,303.97x = 273,659.48 × 107,659.93
  4. Step 4: Simplify right side
    198,303.97x = 29,462,160,875.64
  5. Step 5: Solve for x
    x = 29,462,160,875.64/198,303.97
  6. Step 6: Final answer
    x = 148,570.71

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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.