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Finding the Fourth Proportional to 291,701.79, 402,574.86 and 170,884.62

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Solution

The fourth proportional to 291,701.79, 402,574.86 and 170,884.62 is: 235,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,701.79 : 402,574.86 = 170,884.62 : x
  2. Step 2: Convert to fraction form
    291,701.79/402,574.86 = 170,884.62/x
  3. Step 3: Cross multiply
    291,701.79x = 402,574.86 × 170,884.62
  4. Step 4: Simplify right side
    291,701.79x = 68,793,851,972.65
  5. Step 5: Solve for x
    x = 68,793,851,972.65/291,701.79
  6. Step 6: Final answer
    x = 235,836.24

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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.