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Finding the Fourth Proportional to 156,952.67, 216,590.23 and 85,331.03

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Solution

The fourth proportional to 156,952.67, 216,590.23 and 85,331.03 is: 117,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,952.67 : 216,590.23 = 85,331.03 : x
  2. Step 2: Convert to fraction form
    156,952.67/216,590.23 = 85,331.03/x
  3. Step 3: Cross multiply
    156,952.67x = 216,590.23 × 85,331.03
  4. Step 4: Simplify right side
    156,952.67x = 18,481,867,413.84
  5. Step 5: Solve for x
    x = 18,481,867,413.84/156,952.67
  6. Step 6: Final answer
    x = 117,754.40

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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.