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Finding the Fourth Proportional to 99,263.01, 136,994.60 and 58,977.10

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Solution

The fourth proportional to 99,263.01, 136,994.60 and 58,977.10 is: 81,395.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,263.01 : 136,994.60 = 58,977.10 : x
  2. Step 2: Convert to fraction form
    99,263.01/136,994.60 = 58,977.10/x
  3. Step 3: Cross multiply
    99,263.01x = 136,994.60 × 58,977.10
  4. Step 4: Simplify right side
    99,263.01x = 8,079,544,223.66
  5. Step 5: Solve for x
    x = 8,079,544,223.66/99,263.01
  6. Step 6: Final answer
    x = 81,395.32

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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.