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Finding the Fourth Proportional to 211,265.01, 316,949.49 and 61,506.61

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Solution

The fourth proportional to 211,265.01, 316,949.49 and 61,506.61 is: 92,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,265.01 : 316,949.49 = 61,506.61 : x
  2. Step 2: Convert to fraction form
    211,265.01/316,949.49 = 61,506.61/x
  3. Step 3: Cross multiply
    211,265.01x = 316,949.49 × 61,506.61
  4. Step 4: Simplify right side
    211,265.01x = 19,494,487,878.76
  5. Step 5: Solve for x
    x = 19,494,487,878.76/211,265.01
  6. Step 6: Final answer
    x = 92,275.04

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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.