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Finding the Fourth Proportional to 373,199.70, 559,657.69 and 120,442.30

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Solution

The fourth proportional to 373,199.70, 559,657.69 and 120,442.30 is: 180,617.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,199.70 : 559,657.69 = 120,442.30 : x
  2. Step 2: Convert to fraction form
    373,199.70/559,657.69 = 120,442.30/x
  3. Step 3: Cross multiply
    373,199.70x = 559,657.69 × 120,442.30
  4. Step 4: Simplify right side
    373,199.70x = 67,406,460,844.11
  5. Step 5: Solve for x
    x = 67,406,460,844.11/373,199.70
  6. Step 6: Final answer
    x = 180,617.67

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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.