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Finding the Fourth Proportional to 141,761.34, 195,361.47 and 101,405.01

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Solution

The fourth proportional to 141,761.34, 195,361.47 and 101,405.01 is: 139,746.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,761.34 : 195,361.47 = 101,405.01 : x
  2. Step 2: Convert to fraction form
    141,761.34/195,361.47 = 101,405.01/x
  3. Step 3: Cross multiply
    141,761.34x = 195,361.47 × 101,405.01
  4. Step 4: Simplify right side
    141,761.34x = 19,810,632,551.57
  5. Step 5: Solve for x
    x = 19,810,632,551.57/141,761.34
  6. Step 6: Final answer
    x = 139,746.37

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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.