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Finding the Fourth Proportional to 114,318.46, 157,706.96 and 74,045.67

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Solution

The fourth proportional to 114,318.46, 157,706.96 and 74,045.67 is: 102,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,318.46 : 157,706.96 = 74,045.67 : x
  2. Step 2: Convert to fraction form
    114,318.46/157,706.96 = 74,045.67/x
  3. Step 3: Cross multiply
    114,318.46x = 157,706.96 × 74,045.67
  4. Step 4: Simplify right side
    114,318.46x = 11,677,517,516.86
  5. Step 5: Solve for x
    x = 11,677,517,516.86/114,318.46
  6. Step 6: Final answer
    x = 102,149.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.