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Finding the Fourth Proportional to 97,672.40, 146,508.60 and 64,408.40

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Solution

The fourth proportional to 97,672.40, 146,508.60 and 64,408.40 is: 96,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,672.40 : 146,508.60 = 64,408.40 : x
  2. Step 2: Convert to fraction form
    97,672.40/146,508.60 = 64,408.40/x
  3. Step 3: Cross multiply
    97,672.40x = 146,508.60 × 64,408.40
  4. Step 4: Simplify right side
    97,672.40x = 9,436,384,512.24
  5. Step 5: Solve for x
    x = 9,436,384,512.24/97,672.40
  6. Step 6: Final answer
    x = 96,612.60

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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.