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Finding the Fourth Proportional to 168,548.90, 253,114.95 and 89,816.90

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Solution

The fourth proportional to 168,548.90, 253,114.95 and 89,816.90 is: 134,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,548.90 : 253,114.95 = 89,816.90 : x
  2. Step 2: Convert to fraction form
    168,548.90/253,114.95 = 89,816.90/x
  3. Step 3: Cross multiply
    168,548.90x = 253,114.95 × 89,816.90
  4. Step 4: Simplify right side
    168,548.90x = 22,734,000,152.66
  5. Step 5: Solve for x
    x = 22,734,000,152.66/168,548.90
  6. Step 6: Final answer
    x = 134,880.74

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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.