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Finding the Fourth Proportional to 173,895,540.40, 260,874,803.40 and 87,416,311.60

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Solution

The fourth proportional to 173,895,540.40, 260,874,803.40 and 87,416,311.60 is: 131,140,298.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,895,540.40 : 260,874,803.40 = 87,416,311.60 : x
  2. Step 2: Convert to fraction form
    173,895,540.40/260,874,803.40 = 87,416,311.60/x
  3. Step 3: Cross multiply
    173,895,540.40x = 260,874,803.40 × 87,416,311.60
  4. Step 4: Simplify right side
    173,895,540.40x = 22,804,713,102,603,140
  5. Step 5: Solve for x
    x = 22,804,713,102,603,140/173,895,540.40
  6. Step 6: Final answer
    x = 131,140,298.65

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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.