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Finding the Fourth Proportional to 173,314.60, 259,971.90 and 48,639.40

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Solution

The fourth proportional to 173,314.60, 259,971.90 and 48,639.40 is: 72,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,314.60 : 259,971.90 = 48,639.40 : x
  2. Step 2: Convert to fraction form
    173,314.60/259,971.90 = 48,639.40/x
  3. Step 3: Cross multiply
    173,314.60x = 259,971.90 × 48,639.40
  4. Step 4: Simplify right side
    173,314.60x = 12,644,877,232.86
  5. Step 5: Solve for x
    x = 12,644,877,232.86/173,314.60
  6. Step 6: Final answer
    x = 72,959.10

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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.