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Finding the Fourth Proportional to 204,810.30, 307,215.45 and 111,498.30

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Solution

The fourth proportional to 204,810.30, 307,215.45 and 111,498.30 is: 167,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,810.30 : 307,215.45 = 111,498.30 : x
  2. Step 2: Convert to fraction form
    204,810.30/307,215.45 = 111,498.30/x
  3. Step 3: Cross multiply
    204,810.30x = 307,215.45 × 111,498.30
  4. Step 4: Simplify right side
    204,810.30x = 34,254,000,408.74
  5. Step 5: Solve for x
    x = 34,254,000,408.74/204,810.30
  6. Step 6: Final answer
    x = 167,247.45

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1.5x scale

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.