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Finding the Fourth Proportional to 124,491.90, 171,798.78 and 67,903.26

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Solution

The fourth proportional to 124,491.90, 171,798.78 and 67,903.26 is: 93,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,491.90 : 171,798.78 = 67,903.26 : x
  2. Step 2: Convert to fraction form
    124,491.90/171,798.78 = 67,903.26/x
  3. Step 3: Cross multiply
    124,491.90x = 171,798.78 × 67,903.26
  4. Step 4: Simplify right side
    124,491.90x = 11,665,697,226.02
  5. Step 5: Solve for x
    x = 11,665,697,226.02/124,491.90
  6. Step 6: Final answer
    x = 93,706.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.