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Finding the Fourth Proportional to 334,832.40, 501,811.20 and 134,989.20

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Solution

The fourth proportional to 334,832.40, 501,811.20 and 134,989.20 is: 202,307.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,832.40 : 501,811.20 = 134,989.20 : x
  2. Step 2: Convert to fraction form
    334,832.40/501,811.20 = 134,989.20/x
  3. Step 3: Cross multiply
    334,832.40x = 501,811.20 × 134,989.20
  4. Step 4: Simplify right side
    334,832.40x = 67,739,092,439.04
  5. Step 5: Solve for x
    x = 67,739,092,439.04/334,832.40
  6. Step 6: Final answer
    x = 202,307.46

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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.