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Finding the Fourth Proportional to 70,445.52, 97,229.51 and 64,771.31

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Solution

The fourth proportional to 70,445.52, 97,229.51 and 64,771.31 is: 89,397.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,445.52 : 97,229.51 = 64,771.31 : x
  2. Step 2: Convert to fraction form
    70,445.52/97,229.51 = 64,771.31/x
  3. Step 3: Cross multiply
    70,445.52x = 97,229.51 × 64,771.31
  4. Step 4: Simplify right side
    70,445.52x = 6,297,681,923.35
  5. Step 5: Solve for x
    x = 6,297,681,923.35/70,445.52
  6. Step 6: Final answer
    x = 89,397.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.