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Finding the Fourth Proportional to 335,810.30, 503,715.45 and 111,205.40

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Solution

The fourth proportional to 335,810.30, 503,715.45 and 111,205.40 is: 166,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,810.30 : 503,715.45 = 111,205.40 : x
  2. Step 2: Convert to fraction form
    335,810.30/503,715.45 = 111,205.40/x
  3. Step 3: Cross multiply
    335,810.30x = 503,715.45 × 111,205.40
  4. Step 4: Simplify right side
    335,810.30x = 56,015,878,103.43
  5. Step 5: Solve for x
    x = 56,015,878,103.43/335,810.30
  6. Step 6: Final answer
    x = 166,808.10

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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.