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Finding the Fourth Proportional to 99,303.66, 148,908.57 and 36,079.71

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Solution

The fourth proportional to 99,303.66, 148,908.57 and 36,079.71 is: 54,102.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,303.66 : 148,908.57 = 36,079.71 : x
  2. Step 2: Convert to fraction form
    99,303.66/148,908.57 = 36,079.71/x
  3. Step 3: Cross multiply
    99,303.66x = 148,908.57 × 36,079.71
  4. Step 4: Simplify right side
    99,303.66x = 5,372,578,022.11
  5. Step 5: Solve for x
    x = 5,372,578,022.11/99,303.66
  6. Step 6: Final answer
    x = 54,102.52

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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.