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Finding the Fourth Proportional to 173,876.70, 260,815.05 and 162,126.30

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Solution

The fourth proportional to 173,876.70, 260,815.05 and 162,126.30 is: 243,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,876.70 : 260,815.05 = 162,126.30 : x
  2. Step 2: Convert to fraction form
    173,876.70/260,815.05 = 162,126.30/x
  3. Step 3: Cross multiply
    173,876.70x = 260,815.05 × 162,126.30
  4. Step 4: Simplify right side
    173,876.70x = 42,284,979,040.82
  5. Step 5: Solve for x
    x = 42,284,979,040.82/173,876.70
  6. Step 6: Final answer
    x = 243,189.45

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1.5x scale

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.