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Finding the Fourth Proportional to 114,836.40, 158,621.40 and 88,304.40

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Solution

The fourth proportional to 114,836.40, 158,621.40 and 88,304.40 is: 121,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,836.40 : 158,621.40 = 88,304.40 : x
  2. Step 2: Convert to fraction form
    114,836.40/158,621.40 = 88,304.40/x
  3. Step 3: Cross multiply
    114,836.40x = 158,621.40 × 88,304.40
  4. Step 4: Simplify right side
    114,836.40x = 14,006,967,554.16
  5. Step 5: Solve for x
    x = 14,006,967,554.16/114,836.40
  6. Step 6: Final answer
    x = 121,973.24

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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.