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Finding the Fourth Proportional to 157,955.49, 236,955.51 and 51,305.30

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Solution

The fourth proportional to 157,955.49, 236,955.51 and 51,305.30 is: 76,965.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,955.49 : 236,955.51 = 51,305.30 : x
  2. Step 2: Convert to fraction form
    157,955.49/236,955.51 = 51,305.30/x
  3. Step 3: Cross multiply
    157,955.49x = 236,955.51 × 51,305.30
  4. Step 4: Simplify right side
    157,955.49x = 12,157,073,527.20
  5. Step 5: Solve for x
    x = 12,157,073,527.20/157,955.49
  6. Step 6: Final answer
    x = 76,965.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.