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Finding the Fourth Proportional to 342,973.88, 473,185.50 and 215,659.16

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Solution

The fourth proportional to 342,973.88, 473,185.50 and 215,659.16 is: 297,535.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,973.88 : 473,185.50 = 215,659.16 : x
  2. Step 2: Convert to fraction form
    342,973.88/473,185.50 = 215,659.16/x
  3. Step 3: Cross multiply
    342,973.88x = 473,185.50 × 215,659.16
  4. Step 4: Simplify right side
    342,973.88x = 102,046,787,454.18
  5. Step 5: Solve for x
    x = 102,046,787,454.18/342,973.88
  6. Step 6: Final answer
    x = 297,535.16

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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.