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Finding the Fourth Proportional to 114,352.56, 157,687.56 and 90,441.36

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Solution

The fourth proportional to 114,352.56, 157,687.56 and 90,441.36 is: 124,714.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,352.56 : 157,687.56 = 90,441.36 : x
  2. Step 2: Convert to fraction form
    114,352.56/157,687.56 = 90,441.36/x
  3. Step 3: Cross multiply
    114,352.56x = 157,687.56 × 90,441.36
  4. Step 4: Simplify right side
    114,352.56x = 14,261,477,381.48
  5. Step 5: Solve for x
    x = 14,261,477,381.48/114,352.56
  6. Step 6: Final answer
    x = 124,714.98

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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.