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Finding the Fourth Proportional to 219,472.30, 329,208.45 and 61,700.76

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Solution

The fourth proportional to 219,472.30, 329,208.45 and 61,700.76 is: 92,551.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,472.30 : 329,208.45 = 61,700.76 : x
  2. Step 2: Convert to fraction form
    219,472.30/329,208.45 = 61,700.76/x
  3. Step 3: Cross multiply
    219,472.30x = 329,208.45 × 61,700.76
  4. Step 4: Simplify right side
    219,472.30x = 20,312,411,563.42
  5. Step 5: Solve for x
    x = 20,312,411,563.42/219,472.30
  6. Step 6: Final answer
    x = 92,551.14

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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.