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Finding the Fourth Proportional to 235,547.88, 325,052.94 and 128,115.60

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Solution

The fourth proportional to 235,547.88, 325,052.94 and 128,115.60 is: 176,797.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,547.88 : 325,052.94 = 128,115.60 : x
  2. Step 2: Convert to fraction form
    235,547.88/325,052.94 = 128,115.60/x
  3. Step 3: Cross multiply
    235,547.88x = 325,052.94 × 128,115.60
  4. Step 4: Simplify right side
    235,547.88x = 41,644,352,439.86
  5. Step 5: Solve for x
    x = 41,644,352,439.86/235,547.88
  6. Step 6: Final answer
    x = 176,797.82

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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.