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Finding the Fourth Proportional to 73,659.90, 110,547.45 and 34,221.90

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Solution

The fourth proportional to 73,659.90, 110,547.45 and 34,221.90 is: 51,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,659.90 : 110,547.45 = 34,221.90 : x
  2. Step 2: Convert to fraction form
    73,659.90/110,547.45 = 34,221.90/x
  3. Step 3: Cross multiply
    73,659.90x = 110,547.45 × 34,221.90
  4. Step 4: Simplify right side
    73,659.90x = 3,783,143,779.16
  5. Step 5: Solve for x
    x = 3,783,143,779.16/73,659.90
  6. Step 6: Final answer
    x = 51,359.61

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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.