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Finding the Fourth Proportional to 219,104.65, 328,785.45 and 92,737.05

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Solution

The fourth proportional to 219,104.65, 328,785.45 and 92,737.05 is: 139,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,104.65 : 328,785.45 = 92,737.05 : x
  2. Step 2: Convert to fraction form
    219,104.65/328,785.45 = 92,737.05/x
  3. Step 3: Cross multiply
    219,104.65x = 328,785.45 × 92,737.05
  4. Step 4: Simplify right side
    219,104.65x = 30,490,592,715.92
  5. Step 5: Solve for x
    x = 30,490,592,715.92/219,104.65
  6. Step 6: Final answer
    x = 139,159.95

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1.5x scale

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.