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Finding the Fourth Proportional to 235,937.52, 325,582.56 and 128,507.04

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Solution

The fourth proportional to 235,937.52, 325,582.56 and 128,507.04 is: 177,333.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,937.52 : 325,582.56 = 128,507.04 : x
  2. Step 2: Convert to fraction form
    235,937.52/325,582.56 = 128,507.04/x
  3. Step 3: Cross multiply
    235,937.52x = 325,582.56 × 128,507.04
  4. Step 4: Simplify right side
    235,937.52x = 41,839,651,061.22
  5. Step 5: Solve for x
    x = 41,839,651,061.22/235,937.52
  6. Step 6: Final answer
    x = 177,333.61

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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.