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Finding the Fourth Proportional to 557,156.60, 835,739.70 and 157,806.20

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Solution

The fourth proportional to 557,156.60, 835,739.70 and 157,806.20 is: 236,710.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,156.60 : 835,739.70 = 157,806.20 : x
  2. Step 2: Convert to fraction form
    557,156.60/835,739.70 = 157,806.20/x
  3. Step 3: Cross multiply
    557,156.60x = 835,739.70 × 157,806.20
  4. Step 4: Simplify right side
    557,156.60x = 131,884,906,246.14
  5. Step 5: Solve for x
    x = 131,884,906,246.14/557,156.60
  6. Step 6: Final answer
    x = 236,710.66

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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.