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Finding the Fourth Proportional to 114,356.40, 157,807.20 and 63,369.90

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Solution

The fourth proportional to 114,356.40, 157,807.20 and 63,369.90 is: 87,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,356.40 : 157,807.20 = 63,369.90 : x
  2. Step 2: Convert to fraction form
    114,356.40/157,807.20 = 63,369.90/x
  3. Step 3: Cross multiply
    114,356.40x = 157,807.20 × 63,369.90
  4. Step 4: Simplify right side
    114,356.40x = 10,000,226,483.28
  5. Step 5: Solve for x
    x = 10,000,226,483.28/114,356.40
  6. Step 6: Final answer
    x = 87,447.90

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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.