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Finding the Fourth Proportional to 75,343.53, 112,807.94 and 61,270.59

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Solution

The fourth proportional to 75,343.53, 112,807.94 and 61,270.59 is: 91,737.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,343.53 : 112,807.94 = 61,270.59 : x
  2. Step 2: Convert to fraction form
    75,343.53/112,807.94 = 61,270.59/x
  3. Step 3: Cross multiply
    75,343.53x = 112,807.94 × 61,270.59
  4. Step 4: Simplify right side
    75,343.53x = 6,911,808,734.13
  5. Step 5: Solve for x
    x = 6,911,808,734.13/75,343.53
  6. Step 6: Final answer
    x = 91,737.26

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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.