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Finding the Fourth Proportional to 114,376.33, 157,845.63 and 63,388

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Solution

The fourth proportional to 114,376.33, 157,845.63 and 63,388 is: 87,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,376.33 : 157,845.63 = 63,388 : x
  2. Step 2: Convert to fraction form
    114,376.33/157,845.63 = 63,388/x
  3. Step 3: Cross multiply
    114,376.33x = 157,845.63 × 63,388
  4. Step 4: Simplify right side
    114,376.33x = 10,005,518,794.44
  5. Step 5: Solve for x
    x = 10,005,518,794.44/114,376.33
  6. Step 6: Final answer
    x = 87,478.93

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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.