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Finding the Fourth Proportional to 84,477.76, 126,880.66 and 62,203.16

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Solution

The fourth proportional to 84,477.76, 126,880.66 and 62,203.16 is: 93,425.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,477.76 : 126,880.66 = 62,203.16 : x
  2. Step 2: Convert to fraction form
    84,477.76/126,880.66 = 62,203.16/x
  3. Step 3: Cross multiply
    84,477.76x = 126,880.66 × 62,203.16
  4. Step 4: Simplify right side
    84,477.76x = 7,892,377,994.89
  5. Step 5: Solve for x
    x = 7,892,377,994.89/84,477.76
  6. Step 6: Final answer
    x = 93,425.51

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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.