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Finding the Fourth Proportional to 99,794.02, 137,712.30 and 59,487

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Solution

The fourth proportional to 99,794.02, 137,712.30 and 59,487 is: 82,090.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,794.02 : 137,712.30 = 59,487 : x
  2. Step 2: Convert to fraction form
    99,794.02/137,712.30 = 59,487/x
  3. Step 3: Cross multiply
    99,794.02x = 137,712.30 × 59,487
  4. Step 4: Simplify right side
    99,794.02x = 8,192,091,590.10
  5. Step 5: Solve for x
    x = 8,192,091,590.10/99,794.02
  6. Step 6: Final answer
    x = 82,090.00

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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.