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Finding the Fourth Proportional to 105,552.40, 158,107.80 and 49,440.40

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Solution

The fourth proportional to 105,552.40, 158,107.80 and 49,440.40 is: 74,057.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,552.40 : 158,107.80 = 49,440.40 : x
  2. Step 2: Convert to fraction form
    105,552.40/158,107.80 = 49,440.40/x
  3. Step 3: Cross multiply
    105,552.40x = 158,107.80 × 49,440.40
  4. Step 4: Simplify right side
    105,552.40x = 7,816,912,875.12
  5. Step 5: Solve for x
    x = 7,816,912,875.12/105,552.40
  6. Step 6: Final answer
    x = 74,057.18

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1.5x scale

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.