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Finding the Fourth Proportional to 105,554.40, 158,446.80 and 58,898.40

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Solution

The fourth proportional to 105,554.40, 158,446.80 and 58,898.40 is: 88,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,554.40 : 158,446.80 = 58,898.40 : x
  2. Step 2: Convert to fraction form
    105,554.40/158,446.80 = 58,898.40/x
  3. Step 3: Cross multiply
    105,554.40x = 158,446.80 × 58,898.40
  4. Step 4: Simplify right side
    105,554.40x = 9,332,263,005.12
  5. Step 5: Solve for x
    x = 9,332,263,005.12/105,554.40
  6. Step 6: Final answer
    x = 88,411.88

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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.