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Finding the Fourth Proportional to 118,561.89, 163,615.23 and 70,843.17

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Solution

The fourth proportional to 118,561.89, 163,615.23 and 70,843.17 is: 97,763.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,561.89 : 163,615.23 = 70,843.17 : x
  2. Step 2: Convert to fraction form
    118,561.89/163,615.23 = 70,843.17/x
  3. Step 3: Cross multiply
    118,561.89x = 163,615.23 × 70,843.17
  4. Step 4: Simplify right side
    118,561.89x = 11,591,021,553.48
  5. Step 5: Solve for x
    x = 11,591,021,553.48/118,561.89
  6. Step 6: Final answer
    x = 97,763.47

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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.