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Finding the Fourth Proportional to 219,838.46, 329,763.35 and 59,915.70

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Solution

The fourth proportional to 219,838.46, 329,763.35 and 59,915.70 is: 89,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,838.46 : 329,763.35 = 59,915.70 : x
  2. Step 2: Convert to fraction form
    219,838.46/329,763.35 = 59,915.70/x
  3. Step 3: Cross multiply
    219,838.46x = 329,763.35 × 59,915.70
  4. Step 4: Simplify right side
    219,838.46x = 19,758,002,099.38
  5. Step 5: Solve for x
    x = 19,758,002,099.38/219,838.46
  6. Step 6: Final answer
    x = 89,875.10

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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.