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Finding the Fourth Proportional to 173,361.75, 260,111.61 and 66,717.08

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Solution

The fourth proportional to 173,361.75, 260,111.61 and 66,717.08 is: 100,102.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,361.75 : 260,111.61 = 66,717.08 : x
  2. Step 2: Convert to fraction form
    173,361.75/260,111.61 = 66,717.08/x
  3. Step 3: Cross multiply
    173,361.75x = 260,111.61 × 66,717.08
  4. Step 4: Simplify right side
    173,361.75x = 17,353,885,792.74
  5. Step 5: Solve for x
    x = 17,353,885,792.74/173,361.75
  6. Step 6: Final answer
    x = 100,102.16

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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.