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Finding the Fourth Proportional to 173,662.80, 260,056.80 and 138,670.80

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Solution

The fourth proportional to 173,662.80, 260,056.80 and 138,670.80 is: 207,656.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,662.80 : 260,056.80 = 138,670.80 : x
  2. Step 2: Convert to fraction form
    173,662.80/260,056.80 = 138,670.80/x
  3. Step 3: Cross multiply
    173,662.80x = 260,056.80 × 138,670.80
  4. Step 4: Simplify right side
    173,662.80x = 36,062,284,501.44
  5. Step 5: Solve for x
    x = 36,062,284,501.44/173,662.80
  6. Step 6: Final answer
    x = 207,656.93

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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.