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Finding the Fourth Proportional to 139,464.55, 209,210.66 and 44,670.92

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Solution

The fourth proportional to 139,464.55, 209,210.66 and 44,670.92 is: 67,010.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,464.55 : 209,210.66 = 44,670.92 : x
  2. Step 2: Convert to fraction form
    139,464.55/209,210.66 = 44,670.92/x
  3. Step 3: Cross multiply
    139,464.55x = 209,210.66 × 44,670.92
  4. Step 4: Simplify right side
    139,464.55x = 9,345,632,656.01
  5. Step 5: Solve for x
    x = 9,345,632,656.01/139,464.55
  6. Step 6: Final answer
    x = 67,010.81

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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.