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Finding the Fourth Proportional to 207,361.99, 286,206.23 and 135,700.50

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Solution

The fourth proportional to 207,361.99, 286,206.23 and 135,700.50 is: 187,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,361.99 : 286,206.23 = 135,700.50 : x
  2. Step 2: Convert to fraction form
    207,361.99/286,206.23 = 135,700.50/x
  3. Step 3: Cross multiply
    207,361.99x = 286,206.23 × 135,700.50
  4. Step 4: Simplify right side
    207,361.99x = 38,838,327,179.99
  5. Step 5: Solve for x
    x = 38,838,327,179.99/207,361.99
  6. Step 6: Final answer
    x = 187,297.23

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1.5x scale

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.