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Finding the Fourth Proportional to 175,020.80, 262,531.20 and 133,030.40

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Solution

The fourth proportional to 175,020.80, 262,531.20 and 133,030.40 is: 199,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,020.80 : 262,531.20 = 133,030.40 : x
  2. Step 2: Convert to fraction form
    175,020.80/262,531.20 = 133,030.40/x
  3. Step 3: Cross multiply
    175,020.80x = 262,531.20 × 133,030.40
  4. Step 4: Simplify right side
    175,020.80x = 34,924,630,548.48
  5. Step 5: Solve for x
    x = 34,924,630,548.48/175,020.80
  6. Step 6: Final answer
    x = 199,545.60

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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.