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Finding the Fourth Proportional to 160,536.72, 221,537.76 and 88,916.52

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Solution

The fourth proportional to 160,536.72, 221,537.76 and 88,916.52 is: 122,703.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,536.72 : 221,537.76 = 88,916.52 : x
  2. Step 2: Convert to fraction form
    160,536.72/221,537.76 = 88,916.52/x
  3. Step 3: Cross multiply
    160,536.72x = 221,537.76 × 88,916.52
  4. Step 4: Simplify right side
    160,536.72x = 19,698,366,667.80
  5. Step 5: Solve for x
    x = 19,698,366,667.80/160,536.72
  6. Step 6: Final answer
    x = 122,703.18

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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.