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Finding the Fourth Proportional to 114,398.33, 157,865.49 and 62,715.20

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Solution

The fourth proportional to 114,398.33, 157,865.49 and 62,715.20 is: 86,544.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,398.33 : 157,865.49 = 62,715.20 : x
  2. Step 2: Convert to fraction form
    114,398.33/157,865.49 = 62,715.20/x
  3. Step 3: Cross multiply
    114,398.33x = 157,865.49 × 62,715.20
  4. Step 4: Simplify right side
    114,398.33x = 9,900,564,989.12
  5. Step 5: Solve for x
    x = 9,900,564,989.12/114,398.33
  6. Step 6: Final answer
    x = 86,544.67

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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.