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Finding the Fourth Proportional to 487,692.04, 731,464.16 and 132,733.72

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Solution

The fourth proportional to 487,692.04, 731,464.16 and 132,733.72 is: 199,080.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,692.04 : 731,464.16 = 132,733.72 : x
  2. Step 2: Convert to fraction form
    487,692.04/731,464.16 = 132,733.72/x
  3. Step 3: Cross multiply
    487,692.04x = 731,464.16 × 132,733.72
  4. Step 4: Simplify right side
    487,692.04x = 97,089,959,003.48
  5. Step 5: Solve for x
    x = 97,089,959,003.48/487,692.04
  6. Step 6: Final answer
    x = 199,080.47

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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.