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Finding the Fourth Proportional to 235,995.83, 325,672.55 and 128,565.83

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Solution

The fourth proportional to 235,995.83, 325,672.55 and 128,565.83 is: 177,419.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,995.83 : 325,672.55 = 128,565.83 : x
  2. Step 2: Convert to fraction form
    235,995.83/325,672.55 = 128,565.83/x
  3. Step 3: Cross multiply
    235,995.83x = 325,672.55 × 128,565.83
  4. Step 4: Simplify right side
    235,995.83x = 41,870,362,352.44
  5. Step 5: Solve for x
    x = 41,870,362,352.44/235,995.83
  6. Step 6: Final answer
    x = 177,419.93

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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.