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Finding the Fourth Proportional to 125,415.66, 188,185.01 and 58,861.20

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Solution

The fourth proportional to 125,415.66, 188,185.01 and 58,861.20 is: 88,320.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,415.66 : 188,185.01 = 58,861.20 : x
  2. Step 2: Convert to fraction form
    125,415.66/188,185.01 = 58,861.20/x
  3. Step 3: Cross multiply
    125,415.66x = 188,185.01 × 58,861.20
  4. Step 4: Simplify right side
    125,415.66x = 11,076,795,510.61
  5. Step 5: Solve for x
    x = 11,076,795,510.61/125,415.66
  6. Step 6: Final answer
    x = 88,320.67

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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.