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Finding the Fourth Proportional to 343,079.64, 473,405.58 and 192,176.64

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Solution

The fourth proportional to 343,079.64, 473,405.58 and 192,176.64 is: 265,178.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,079.64 : 473,405.58 = 192,176.64 : x
  2. Step 2: Convert to fraction form
    343,079.64/473,405.58 = 192,176.64/x
  3. Step 3: Cross multiply
    343,079.64x = 473,405.58 × 192,176.64
  4. Step 4: Simplify right side
    343,079.64x = 90,977,493,721.65
  5. Step 5: Solve for x
    x = 90,977,493,721.65/343,079.64
  6. Step 6: Final answer
    x = 265,178.94

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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.