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Finding the Fourth Proportional to 168,047.48, 231,894.71 and 100,069.45

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Solution

The fourth proportional to 168,047.48, 231,894.71 and 100,069.45 is: 138,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,047.48 : 231,894.71 = 100,069.45 : x
  2. Step 2: Convert to fraction form
    168,047.48/231,894.71 = 100,069.45/x
  3. Step 3: Cross multiply
    168,047.48x = 231,894.71 × 100,069.45
  4. Step 4: Simplify right side
    168,047.48x = 23,205,576,087.61
  5. Step 5: Solve for x
    x = 23,205,576,087.61/168,047.48
  6. Step 6: Final answer
    x = 138,089.40

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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.