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Finding the Fourth Proportional to 262,110.88, 392,672.88 and 155,178.40

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Solution

The fourth proportional to 262,110.88, 392,672.88 and 155,178.40 is: 232,475.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,110.88 : 392,672.88 = 155,178.40 : x
  2. Step 2: Convert to fraction form
    262,110.88/392,672.88 = 155,178.40/x
  3. Step 3: Cross multiply
    262,110.88x = 392,672.88 × 155,178.40
  4. Step 4: Simplify right side
    262,110.88x = 60,934,349,241.79
  5. Step 5: Solve for x
    x = 60,934,349,241.79/262,110.88
  6. Step 6: Final answer
    x = 232,475.47

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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.