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Finding the Fourth Proportional to 99,313.53, 148,923.30 and 36,089.58

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Solution

The fourth proportional to 99,313.53, 148,923.30 and 36,089.58 is: 54,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,313.53 : 148,923.30 = 36,089.58 : x
  2. Step 2: Convert to fraction form
    99,313.53/148,923.30 = 36,089.58/x
  3. Step 3: Cross multiply
    99,313.53x = 148,923.30 × 36,089.58
  4. Step 4: Simplify right side
    99,313.53x = 5,374,579,349.21
  5. Step 5: Solve for x
    x = 5,374,579,349.21/99,313.53
  6. Step 6: Final answer
    x = 54,117.29

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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.