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Finding the Fourth Proportional to 139,599,705.88, 209,495,203.62 and 48,723,294.88

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Solution

The fourth proportional to 139,599,705.88, 209,495,203.62 and 48,723,294.88 is: 73,118,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,599,705.88 : 209,495,203.62 = 48,723,294.88 : x
  2. Step 2: Convert to fraction form
    139,599,705.88/209,495,203.62 = 48,723,294.88/x
  3. Step 3: Cross multiply
    139,599,705.88x = 209,495,203.62 × 48,723,294.88
  4. Step 4: Simplify right side
    139,599,705.88x = 10,207,296,581,922,904
  5. Step 5: Solve for x
    x = 10,207,296,581,922,904/139,599,705.88
  6. Step 6: Final answer
    x = 73,118,324.41

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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.