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Finding the Fourth Proportional to 70,176.78, 96,946.40 and 60,728.94

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Solution

The fourth proportional to 70,176.78, 96,946.40 and 60,728.94 is: 83,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,176.78 : 96,946.40 = 60,728.94 : x
  2. Step 2: Convert to fraction form
    70,176.78/96,946.40 = 60,728.94/x
  3. Step 3: Cross multiply
    70,176.78x = 96,946.40 × 60,728.94
  4. Step 4: Simplify right side
    70,176.78x = 5,887,451,624.08
  5. Step 5: Solve for x
    x = 5,887,451,624.08/70,176.78
  6. Step 6: Final answer
    x = 83,894.59

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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.