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Finding the Fourth Proportional to 116,567.81, 160,869.48 and 68,820.12

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Solution

The fourth proportional to 116,567.81, 160,869.48 and 68,820.12 is: 94,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,567.81 : 160,869.48 = 68,820.12 : x
  2. Step 2: Convert to fraction form
    116,567.81/160,869.48 = 68,820.12/x
  3. Step 3: Cross multiply
    116,567.81x = 160,869.48 × 68,820.12
  4. Step 4: Simplify right side
    116,567.81x = 11,071,056,917.94
  5. Step 5: Solve for x
    x = 11,071,056,917.94/116,567.81
  6. Step 6: Final answer
    x = 94,975.25

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1.5x scale

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.