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Finding the Fourth Proportional to 487,534.56, 731,318.12 and 167,683.36

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Solution

The fourth proportional to 487,534.56, 731,318.12 and 167,683.36 is: 251,530.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,534.56 : 731,318.12 = 167,683.36 : x
  2. Step 2: Convert to fraction form
    487,534.56/731,318.12 = 167,683.36/x
  3. Step 3: Cross multiply
    487,534.56x = 731,318.12 × 167,683.36
  4. Step 4: Simplify right side
    487,534.56x = 122,629,879,590.48
  5. Step 5: Solve for x
    x = 122,629,879,590.48/487,534.56
  6. Step 6: Final answer
    x = 251,530.64

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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.