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Finding the Fourth Proportional to 528,168.59, 792,239.01 and 149,115.53

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Solution

The fourth proportional to 528,168.59, 792,239.01 and 149,115.53 is: 223,669.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,168.59 : 792,239.01 = 149,115.53 : x
  2. Step 2: Convert to fraction form
    528,168.59/792,239.01 = 149,115.53/x
  3. Step 3: Cross multiply
    528,168.59x = 792,239.01 × 149,115.53
  4. Step 4: Simplify right side
    528,168.59x = 118,135,135,901.63
  5. Step 5: Solve for x
    x = 118,135,135,901.63/528,168.59
  6. Step 6: Final answer
    x = 223,669.37

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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.