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Finding the Fourth Proportional to 116,567.81, 160,869.48 and 68,820.13

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Solution

The fourth proportional to 116,567.81, 160,869.48 and 68,820.13 is: 94,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,567.81 : 160,869.48 = 68,820.13 : x
  2. Step 2: Convert to fraction form
    116,567.81/160,869.48 = 68,820.13/x
  3. Step 3: Cross multiply
    116,567.81x = 160,869.48 × 68,820.13
  4. Step 4: Simplify right side
    116,567.81x = 11,071,058,124.46
  5. Step 5: Solve for x
    x = 11,071,058,124.46/116,567.81
  6. Step 6: Final answer
    x = 94,975.26

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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.