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Finding the Fourth Proportional to 135,300.97, 202,121.81 and 97,538.77

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Solution

The fourth proportional to 135,300.97, 202,121.81 and 97,538.77 is: 145,710.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,300.97 : 202,121.81 = 97,538.77 : x
  2. Step 2: Convert to fraction form
    135,300.97/202,121.81 = 97,538.77/x
  3. Step 3: Cross multiply
    135,300.97x = 202,121.81 × 97,538.77
  4. Step 4: Simplify right side
    135,300.97x = 19,714,712,737.57
  5. Step 5: Solve for x
    x = 19,714,712,737.57/135,300.97
  6. Step 6: Final answer
    x = 145,710.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.