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Finding the Fourth Proportional to 96,065.39, 143,802.81 and 81,893.63

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Solution

The fourth proportional to 96,065.39, 143,802.81 and 81,893.63 is: 122,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,065.39 : 143,802.81 = 81,893.63 : x
  2. Step 2: Convert to fraction form
    96,065.39/143,802.81 = 81,893.63/x
  3. Step 3: Cross multiply
    96,065.39x = 143,802.81 × 81,893.63
  4. Step 4: Simplify right side
    96,065.39x = 11,776,534,115.10
  5. Step 5: Solve for x
    x = 11,776,534,115.10/96,065.39
  6. Step 6: Final answer
    x = 122,588.73

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1.5x scale

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.