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Finding the Fourth Proportional to 91,698.87, 137,536.53 and 35,500.47

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Solution

The fourth proportional to 91,698.87, 137,536.53 and 35,500.47 is: 53,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,698.87 : 137,536.53 = 35,500.47 : x
  2. Step 2: Convert to fraction form
    91,698.87/137,536.53 = 35,500.47/x
  3. Step 3: Cross multiply
    91,698.87x = 137,536.53 × 35,500.47
  4. Step 4: Simplify right side
    91,698.87x = 4,882,611,457.17
  5. Step 5: Solve for x
    x = 4,882,611,457.17/91,698.87
  6. Step 6: Final answer
    x = 53,246.15

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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.