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Finding the Fourth Proportional to 265,572.81, 398,358.14 and 107,799.93

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Solution

The fourth proportional to 265,572.81, 398,358.14 and 107,799.93 is: 161,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,572.81 : 398,358.14 = 107,799.93 : x
  2. Step 2: Convert to fraction form
    265,572.81/398,358.14 = 107,799.93/x
  3. Step 3: Cross multiply
    265,572.81x = 398,358.14 × 107,799.93
  4. Step 4: Simplify right side
    265,572.81x = 42,942,979,067.93
  5. Step 5: Solve for x
    x = 42,942,979,067.93/265,572.81
  6. Step 6: Final answer
    x = 161,699.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.