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Finding the Fourth Proportional to 98,625.40, 147,865.20 and 54,302.20

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Solution

The fourth proportional to 98,625.40, 147,865.20 and 54,302.20 is: 81,413.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,625.40 : 147,865.20 = 54,302.20 : x
  2. Step 2: Convert to fraction form
    98,625.40/147,865.20 = 54,302.20/x
  3. Step 3: Cross multiply
    98,625.40x = 147,865.20 × 54,302.20
  4. Step 4: Simplify right side
    98,625.40x = 8,029,405,663.44
  5. Step 5: Solve for x
    x = 8,029,405,663.44/98,625.40
  6. Step 6: Final answer
    x = 81,413.16

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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.