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Finding the Fourth Proportional to 148,907.80, 223,070.10 and 89,567.20

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Solution

The fourth proportional to 148,907.80, 223,070.10 and 89,567.20 is: 134,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,907.80 : 223,070.10 = 89,567.20 : x
  2. Step 2: Convert to fraction form
    148,907.80/223,070.10 = 89,567.20/x
  3. Step 3: Cross multiply
    148,907.80x = 223,070.10 × 89,567.20
  4. Step 4: Simplify right side
    148,907.80x = 19,979,764,260.72
  5. Step 5: Solve for x
    x = 19,979,764,260.72/148,907.80
  6. Step 6: Final answer
    x = 134,175.40

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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.