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Finding the Fourth Proportional to 98,910.87, 136,496.82 and 53,590.01

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Solution

The fourth proportional to 98,910.87, 136,496.82 and 53,590.01 is: 73,954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,910.87 : 136,496.82 = 53,590.01 : x
  2. Step 2: Convert to fraction form
    98,910.87/136,496.82 = 53,590.01/x
  3. Step 3: Cross multiply
    98,910.87x = 136,496.82 × 53,590.01
  4. Step 4: Simplify right side
    98,910.87x = 7,314,865,316.52
  5. Step 5: Solve for x
    x = 7,314,865,316.52/98,910.87
  6. Step 6: Final answer
    x = 73,954.11

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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.