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Finding the Fourth Proportional to 173,990.08, 260,981.31 and 55,661.02

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Solution

The fourth proportional to 173,990.08, 260,981.31 and 55,661.02 is: 83,490.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,990.08 : 260,981.31 = 55,661.02 : x
  2. Step 2: Convert to fraction form
    173,990.08/260,981.31 = 55,661.02/x
  3. Step 3: Cross multiply
    173,990.08x = 260,981.31 × 55,661.02
  4. Step 4: Simplify right side
    173,990.08x = 14,526,485,915.54
  5. Step 5: Solve for x
    x = 14,526,485,915.54/173,990.08
  6. Step 6: Final answer
    x = 83,490.31

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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.