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Finding the Fourth Proportional to 96,900.72, 133,706.73 and 53,878.98

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Solution

The fourth proportional to 96,900.72, 133,706.73 and 53,878.98 is: 74,343.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,900.72 : 133,706.73 = 53,878.98 : x
  2. Step 2: Convert to fraction form
    96,900.72/133,706.73 = 53,878.98/x
  3. Step 3: Cross multiply
    96,900.72x = 133,706.73 × 53,878.98
  4. Step 4: Simplify right side
    96,900.72x = 7,203,982,934.98
  5. Step 5: Solve for x
    x = 7,203,982,934.98/96,900.72
  6. Step 6: Final answer
    x = 74,343.96

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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.