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Finding the Fourth Proportional to 100,396.59, 149,774.71 and 93,237.81

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Solution

The fourth proportional to 100,396.59, 149,774.71 and 93,237.81 is: 139,095.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,396.59 : 149,774.71 = 93,237.81 : x
  2. Step 2: Convert to fraction form
    100,396.59/149,774.71 = 93,237.81/x
  3. Step 3: Cross multiply
    100,396.59x = 149,774.71 × 93,237.81
  4. Step 4: Simplify right side
    100,396.59x = 13,964,665,953.79
  5. Step 5: Solve for x
    x = 13,964,665,953.79/100,396.59
  6. Step 6: Final answer
    x = 139,095.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.