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Finding the Fourth Proportional to 97,648.98, 134,715.78 and 63,645.06

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Solution

The fourth proportional to 97,648.98, 134,715.78 and 63,645.06 is: 87,804.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,648.98 : 134,715.78 = 63,645.06 : x
  2. Step 2: Convert to fraction form
    97,648.98/134,715.78 = 63,645.06/x
  3. Step 3: Cross multiply
    97,648.98x = 134,715.78 × 63,645.06
  4. Step 4: Simplify right side
    97,648.98x = 8,573,993,901.05
  5. Step 5: Solve for x
    x = 8,573,993,901.05/97,648.98
  6. Step 6: Final answer
    x = 87,804.23

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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.