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Finding the Fourth Proportional to 116,058.96, 160,132.68 and 68,308.56

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Solution

The fourth proportional to 116,058.96, 160,132.68 and 68,308.56 is: 94,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,058.96 : 160,132.68 = 68,308.56 : x
  2. Step 2: Convert to fraction form
    116,058.96/160,132.68 = 68,308.56/x
  3. Step 3: Cross multiply
    116,058.96x = 160,132.68 × 68,308.56
  4. Step 4: Simplify right side
    116,058.96x = 10,938,432,779.74
  5. Step 5: Solve for x
    x = 10,938,432,779.74/116,058.96
  6. Step 6: Final answer
    x = 94,248.93

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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.