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Finding the Fourth Proportional to 231,012.80, 346,369.35 and 97,856.90

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Solution

The fourth proportional to 231,012.80, 346,369.35 and 97,856.90 is: 146,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,012.80 : 346,369.35 = 97,856.90 : x
  2. Step 2: Convert to fraction form
    231,012.80/346,369.35 = 97,856.90/x
  3. Step 3: Cross multiply
    231,012.80x = 346,369.35 × 97,856.90
  4. Step 4: Simplify right side
    231,012.80x = 33,894,630,846.02
  5. Step 5: Solve for x
    x = 33,894,630,846.02/231,012.80
  6. Step 6: Final answer
    x = 146,721.87

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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.