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Finding the Fourth Proportional to 402,660.72, 604,107.72 and 165,881.52

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Solution

The fourth proportional to 402,660.72, 604,107.72 and 165,881.52 is: 248,870.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,660.72 : 604,107.72 = 165,881.52 : x
  2. Step 2: Convert to fraction form
    402,660.72/604,107.72 = 165,881.52/x
  3. Step 3: Cross multiply
    402,660.72x = 604,107.72 × 165,881.52
  4. Step 4: Simplify right side
    402,660.72x = 100,210,306,837.33
  5. Step 5: Solve for x
    x = 100,210,306,837.33/402,660.72
  6. Step 6: Final answer
    x = 248,870.33

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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.