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Finding the Fourth Proportional to 114,055.52, 157,402.60 and 68,747.90

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Solution

The fourth proportional to 114,055.52, 157,402.60 and 68,747.90 is: 94,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,055.52 : 157,402.60 = 68,747.90 : x
  2. Step 2: Convert to fraction form
    114,055.52/157,402.60 = 68,747.90/x
  3. Step 3: Cross multiply
    114,055.52x = 157,402.60 × 68,747.90
  4. Step 4: Simplify right side
    114,055.52x = 10,821,097,245.66
  5. Step 5: Solve for x
    x = 10,821,097,245.66/114,055.52
  6. Step 6: Final answer
    x = 94,875.70

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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.