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Finding the Fourth Proportional to 219,237.93, 328,866.05 and 69,474.91

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Solution

The fourth proportional to 219,237.93, 328,866.05 and 69,474.91 is: 104,215.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,237.93 : 328,866.05 = 69,474.91 : x
  2. Step 2: Convert to fraction form
    219,237.93/328,866.05 = 69,474.91/x
  3. Step 3: Cross multiply
    219,237.93x = 328,866.05 × 69,474.91
  4. Step 4: Simplify right side
    219,237.93x = 22,847,939,225.81
  5. Step 5: Solve for x
    x = 22,847,939,225.81/219,237.93
  6. Step 6: Final answer
    x = 104,215.27

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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.