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Finding the Fourth Proportional to 265,111.57, 398,331.66 and 249,168.34

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Solution

The fourth proportional to 265,111.57, 398,331.66 and 249,168.34 is: 374,376.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,111.57 : 398,331.66 = 249,168.34 : x
  2. Step 2: Convert to fraction form
    265,111.57/398,331.66 = 249,168.34/x
  3. Step 3: Cross multiply
    265,111.57x = 398,331.66 × 249,168.34
  4. Step 4: Simplify right side
    265,111.57x = 99,251,638,491.64
  5. Step 5: Solve for x
    x = 99,251,638,491.64/265,111.57
  6. Step 6: Final answer
    x = 374,376.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.