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Finding the Fourth Proportional to 219,269.70, 328,877.21 and 61,510.46

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Solution

The fourth proportional to 219,269.70, 328,877.21 and 61,510.46 is: 92,258.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,269.70 : 328,877.21 = 61,510.46 : x
  2. Step 2: Convert to fraction form
    219,269.70/328,877.21 = 61,510.46/x
  3. Step 3: Cross multiply
    219,269.70x = 328,877.21 × 61,510.46
  4. Step 4: Simplify right side
    219,269.70x = 20,229,386,518.68
  5. Step 5: Solve for x
    x = 20,229,386,518.68/219,269.70
  6. Step 6: Final answer
    x = 92,258.01

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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.