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Finding the Fourth Proportional to 160,395.84, 221,315.52 and 88,772.48

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Solution

The fourth proportional to 160,395.84, 221,315.52 and 88,772.48 is: 122,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,395.84 : 221,315.52 = 88,772.48 : x
  2. Step 2: Convert to fraction form
    160,395.84/221,315.52 = 88,772.48/x
  3. Step 3: Cross multiply
    160,395.84x = 221,315.52 × 88,772.48
  4. Step 4: Simplify right side
    160,395.84x = 19,646,727,572.89
  5. Step 5: Solve for x
    x = 19,646,727,572.89/160,395.84
  6. Step 6: Final answer
    x = 122,489.01

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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.