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Finding the Fourth Proportional to 219,184.48, 328,773.06 and 69,424.48

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Solution

The fourth proportional to 219,184.48, 328,773.06 and 69,424.48 is: 104,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,184.48 : 328,773.06 = 69,424.48 : x
  2. Step 2: Convert to fraction form
    219,184.48/328,773.06 = 69,424.48/x
  3. Step 3: Cross multiply
    219,184.48x = 328,773.06 × 69,424.48
  4. Step 4: Simplify right side
    219,184.48x = 22,824,898,728.51
  5. Step 5: Solve for x
    x = 22,824,898,728.51/219,184.48
  6. Step 6: Final answer
    x = 104,135.56

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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.