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Finding the Fourth Proportional to 201,111.53, 301,794.35 and 112,423.19

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Solution

The fourth proportional to 201,111.53, 301,794.35 and 112,423.19 is: 168,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,111.53 : 301,794.35 = 112,423.19 : x
  2. Step 2: Convert to fraction form
    201,111.53/301,794.35 = 112,423.19/x
  3. Step 3: Cross multiply
    201,111.53x = 301,794.35 × 112,423.19
  4. Step 4: Simplify right side
    201,111.53x = 33,928,681,479.89
  5. Step 5: Solve for x
    x = 33,928,681,479.89/201,111.53
  6. Step 6: Final answer
    x = 168,705.80

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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.