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Finding the Fourth Proportional to 219,266.13, 328,871.86 and 61,506.89

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Solution

The fourth proportional to 219,266.13, 328,871.86 and 61,506.89 is: 92,252.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,266.13 : 328,871.86 = 61,506.89 : x
  2. Step 2: Convert to fraction form
    219,266.13/328,871.86 = 61,506.89/x
  3. Step 3: Cross multiply
    219,266.13x = 328,871.86 × 61,506.89
  4. Step 4: Simplify right side
    219,266.13x = 20,227,883,518.99
  5. Step 5: Solve for x
    x = 20,227,883,518.99/219,266.13
  6. Step 6: Final answer
    x = 92,252.66

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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.