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Finding the Fourth Proportional to 114,290.35, 157,686.56 and 73,940.20

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Solution

The fourth proportional to 114,290.35, 157,686.56 and 73,940.20 is: 102,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,290.35 : 157,686.56 = 73,940.20 : x
  2. Step 2: Convert to fraction form
    114,290.35/157,686.56 = 73,940.20/x
  3. Step 3: Cross multiply
    114,290.35x = 157,686.56 × 73,940.20
  4. Step 4: Simplify right side
    114,290.35x = 11,659,375,783.71
  5. Step 5: Solve for x
    x = 11,659,375,783.71/114,290.35
  6. Step 6: Final answer
    x = 102,015.40

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1.5x scale

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.