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Finding the Fourth Proportional to 114,707.16, 158,321.16 and 63,737.40

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Solution

The fourth proportional to 114,707.16, 158,321.16 and 63,737.40 is: 87,971.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,707.16 : 158,321.16 = 63,737.40 : x
  2. Step 2: Convert to fraction form
    114,707.16/158,321.16 = 63,737.40/x
  3. Step 3: Cross multiply
    114,707.16x = 158,321.16 × 63,737.40
  4. Step 4: Simplify right side
    114,707.16x = 10,090,979,103.38
  5. Step 5: Solve for x
    x = 10,090,979,103.38/114,707.16
  6. Step 6: Final answer
    x = 87,971.66

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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.