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Finding the Fourth Proportional to 139,552.92, 209,362.05 and 46,058.58

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Solution

The fourth proportional to 139,552.92, 209,362.05 and 46,058.58 is: 69,098.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,552.92 : 209,362.05 = 46,058.58 : x
  2. Step 2: Convert to fraction form
    139,552.92/209,362.05 = 46,058.58/x
  3. Step 3: Cross multiply
    139,552.92x = 209,362.05 × 46,058.58
  4. Step 4: Simplify right side
    139,552.92x = 9,642,918,728.89
  5. Step 5: Solve for x
    x = 9,642,918,728.89/139,552.92
  6. Step 6: Final answer
    x = 69,098.65

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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.