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Finding the Fourth Proportional to 91,703.74, 137,543.89 and 35,505.40

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Solution

The fourth proportional to 91,703.74, 137,543.89 and 35,505.40 is: 53,253.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,703.74 : 137,543.89 = 35,505.40 : x
  2. Step 2: Convert to fraction form
    91,703.74/137,543.89 = 35,505.40/x
  3. Step 3: Cross multiply
    91,703.74x = 137,543.89 × 35,505.40
  4. Step 4: Simplify right side
    91,703.74x = 4,883,550,832.01
  5. Step 5: Solve for x
    x = 4,883,550,832.01/91,703.74
  6. Step 6: Final answer
    x = 53,253.56

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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.