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Finding the Fourth Proportional to 160,491.88, 221,476.04 and 88,870.36

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Solution

The fourth proportional to 160,491.88, 221,476.04 and 88,870.36 is: 122,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,491.88 : 221,476.04 = 88,870.36 : x
  2. Step 2: Convert to fraction form
    160,491.88/221,476.04 = 88,870.36/x
  3. Step 3: Cross multiply
    160,491.88x = 221,476.04 × 88,870.36
  4. Step 4: Simplify right side
    160,491.88x = 19,682,655,406.17
  5. Step 5: Solve for x
    x = 19,682,655,406.17/160,491.88
  6. Step 6: Final answer
    x = 122,639.57

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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.