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Finding the Fourth Proportional to 342,998.64, 473,331.98 and 190,033.76

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Solution

The fourth proportional to 342,998.64, 473,331.98 and 190,033.76 is: 262,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,998.64 : 473,331.98 = 190,033.76 : x
  2. Step 2: Convert to fraction form
    342,998.64/473,331.98 = 190,033.76/x
  3. Step 3: Cross multiply
    342,998.64x = 473,331.98 × 190,033.76
  4. Step 4: Simplify right side
    342,998.64x = 89,949,052,570.82
  5. Step 5: Solve for x
    x = 89,949,052,570.82/342,998.64
  6. Step 6: Final answer
    x = 262,243.18

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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.