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Finding the Fourth Proportional to 148,478.99, 222,612.71 and 69,550.16

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Solution

The fourth proportional to 148,478.99, 222,612.71 and 69,550.16 is: 104,275.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,478.99 : 222,612.71 = 69,550.16 : x
  2. Step 2: Convert to fraction form
    148,478.99/222,612.71 = 69,550.16/x
  3. Step 3: Cross multiply
    148,478.99x = 222,612.71 × 69,550.16
  4. Step 4: Simplify right side
    148,478.99x = 15,482,748,137.72
  5. Step 5: Solve for x
    x = 15,482,748,137.72/148,478.99
  6. Step 6: Final answer
    x = 104,275.69

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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.