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Finding the Fourth Proportional to 79,455, 119,182.50 and 29,547.66

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Solution

The fourth proportional to 79,455, 119,182.50 and 29,547.66 is: 44,321.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,455 : 119,182.50 = 29,547.66 : x
  2. Step 2: Convert to fraction form
    79,455/119,182.50 = 29,547.66/x
  3. Step 3: Cross multiply
    79,455x = 119,182.50 × 29,547.66
  4. Step 4: Simplify right side
    79,455x = 3,521,563,987.95
  5. Step 5: Solve for x
    x = 3,521,563,987.95/79,455
  6. Step 6: Final answer
    x = 44,321.49

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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.