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Finding the Fourth Proportional to 201,035.19, 301,611.22 and 81,030.06

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Solution

The fourth proportional to 201,035.19, 301,611.22 and 81,030.06 is: 121,568.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,035.19 : 301,611.22 = 81,030.06 : x
  2. Step 2: Convert to fraction form
    201,035.19/301,611.22 = 81,030.06/x
  3. Step 3: Cross multiply
    201,035.19x = 301,611.22 × 81,030.06
  4. Step 4: Simplify right side
    201,035.19x = 24,439,574,854.45
  5. Step 5: Solve for x
    x = 24,439,574,854.45/201,035.19
  6. Step 6: Final answer
    x = 121,568.64

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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.