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Finding the Fourth Proportional to 604,643.20, 906,651.06 and 178,123.66

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Solution

The fourth proportional to 604,643.20, 906,651.06 and 178,123.66 is: 267,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,643.20 : 906,651.06 = 178,123.66 : x
  2. Step 2: Convert to fraction form
    604,643.20/906,651.06 = 178,123.66/x
  3. Step 3: Cross multiply
    604,643.20x = 906,651.06 × 178,123.66
  4. Step 4: Simplify right side
    604,643.20x = 161,496,005,150.08
  5. Step 5: Solve for x
    x = 161,496,005,150.08/604,643.20
  6. Step 6: Final answer
    x = 267,093.06

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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.