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Finding the Fourth Proportional to 114,298.72, 157,728.76 and 63,309.44

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Solution

The fourth proportional to 114,298.72, 157,728.76 and 63,309.44 is: 87,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,298.72 : 157,728.76 = 63,309.44 : x
  2. Step 2: Convert to fraction form
    114,298.72/157,728.76 = 63,309.44/x
  3. Step 3: Cross multiply
    114,298.72x = 157,728.76 × 63,309.44
  4. Step 4: Simplify right side
    114,298.72x = 9,985,719,467.49
  5. Step 5: Solve for x
    x = 9,985,719,467.49/114,298.72
  6. Step 6: Final answer
    x = 87,365.10

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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.