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Finding the Fourth Proportional to 89,852.80, 134,779.20 and 63,608.80

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Solution

The fourth proportional to 89,852.80, 134,779.20 and 63,608.80 is: 95,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,852.80 : 134,779.20 = 63,608.80 : x
  2. Step 2: Convert to fraction form
    89,852.80/134,779.20 = 63,608.80/x
  3. Step 3: Cross multiply
    89,852.80x = 134,779.20 × 63,608.80
  4. Step 4: Simplify right side
    89,852.80x = 8,573,143,176.96
  5. Step 5: Solve for x
    x = 8,573,143,176.96/89,852.80
  6. Step 6: Final answer
    x = 95,413.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.