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Finding the Fourth Proportional to 108,715.82, 150,029.43 and 63,392.54

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Solution

The fourth proportional to 108,715.82, 150,029.43 and 63,392.54 is: 87,482.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,715.82 : 150,029.43 = 63,392.54 : x
  2. Step 2: Convert to fraction form
    108,715.82/150,029.43 = 63,392.54/x
  3. Step 3: Cross multiply
    108,715.82x = 150,029.43 × 63,392.54
  4. Step 4: Simplify right side
    108,715.82x = 9,510,746,642.45
  5. Step 5: Solve for x
    x = 9,510,746,642.45/108,715.82
  6. Step 6: Final answer
    x = 87,482.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.