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Finding the Fourth Proportional to 219,300.93, 328,686.32 and 106,812.59

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Solution

The fourth proportional to 219,300.93, 328,686.32 and 106,812.59 is: 160,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,300.93 : 328,686.32 = 106,812.59 : x
  2. Step 2: Convert to fraction form
    219,300.93/328,686.32 = 106,812.59/x
  3. Step 3: Cross multiply
    219,300.93x = 328,686.32 × 106,812.59
  4. Step 4: Simplify right side
    219,300.93x = 35,107,836,576.93
  5. Step 5: Solve for x
    x = 35,107,836,576.93/219,300.93
  6. Step 6: Final answer
    x = 160,089.77

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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.