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Finding the Fourth Proportional to 114,480.32, 157,990.92 and 63,509.36

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Solution

The fourth proportional to 114,480.32, 157,990.92 and 63,509.36 is: 87,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,480.32 : 157,990.92 = 63,509.36 : x
  2. Step 2: Convert to fraction form
    114,480.32/157,990.92 = 63,509.36/x
  3. Step 3: Cross multiply
    114,480.32x = 157,990.92 × 63,509.36
  4. Step 4: Simplify right side
    114,480.32x = 10,033,902,215.01
  5. Step 5: Solve for x
    x = 10,033,902,215.01/114,480.32
  6. Step 6: Final answer
    x = 87,647.40

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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.