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Finding the Fourth Proportional to 97,480.51, 134,446.65 and 63,499.69

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Solution

The fourth proportional to 97,480.51, 134,446.65 and 63,499.69 is: 87,579.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,480.51 : 134,446.65 = 63,499.69 : x
  2. Step 2: Convert to fraction form
    97,480.51/134,446.65 = 63,499.69/x
  3. Step 3: Cross multiply
    97,480.51x = 134,446.65 × 63,499.69
  4. Step 4: Simplify right side
    97,480.51x = 8,537,320,596.54
  5. Step 5: Solve for x
    x = 8,537,320,596.54/97,480.51
  6. Step 6: Final answer
    x = 87,579.77

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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.