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Finding the Fourth Proportional to 91,010.98, 136,577.99 and 31,847.16

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Solution

The fourth proportional to 91,010.98, 136,577.99 and 31,847.16 is: 47,792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,010.98 : 136,577.99 = 31,847.16 : x
  2. Step 2: Convert to fraction form
    91,010.98/136,577.99 = 31,847.16/x
  3. Step 3: Cross multiply
    91,010.98x = 136,577.99 × 31,847.16
  4. Step 4: Simplify right side
    91,010.98x = 4,349,621,100.01
  5. Step 5: Solve for x
    x = 4,349,621,100.01/91,010.98
  6. Step 6: Final answer
    x = 47,792.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.