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Finding the Fourth Proportional to 139,457.60, 209,200.24 and 44,663.98

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Solution

The fourth proportional to 139,457.60, 209,200.24 and 44,663.98 is: 67,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,457.60 : 209,200.24 = 44,663.98 : x
  2. Step 2: Convert to fraction form
    139,457.60/209,200.24 = 44,663.98/x
  3. Step 3: Cross multiply
    139,457.60x = 209,200.24 × 44,663.98
  4. Step 4: Simplify right side
    139,457.60x = 9,343,715,335.36
  5. Step 5: Solve for x
    x = 9,343,715,335.36/139,457.60
  6. Step 6: Final answer
    x = 67,000.40

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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.