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Finding the Fourth Proportional to 114,143.76, 157,523.03 and 63,155.66

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Solution

The fourth proportional to 114,143.76, 157,523.03 and 63,155.66 is: 87,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,143.76 : 157,523.03 = 63,155.66 : x
  2. Step 2: Convert to fraction form
    114,143.76/157,523.03 = 63,155.66/x
  3. Step 3: Cross multiply
    114,143.76x = 157,523.03 × 63,155.66
  4. Step 4: Simplify right side
    114,143.76x = 9,948,470,609.07
  5. Step 5: Solve for x
    x = 9,948,470,609.07/114,143.76
  6. Step 6: Final answer
    x = 87,157.38

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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.