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Finding the Fourth Proportional to 105,033.80, 157,550.70 and 65,635.40

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Solution

The fourth proportional to 105,033.80, 157,550.70 and 65,635.40 is: 98,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,033.80 : 157,550.70 = 65,635.40 : x
  2. Step 2: Convert to fraction form
    105,033.80/157,550.70 = 65,635.40/x
  3. Step 3: Cross multiply
    105,033.80x = 157,550.70 × 65,635.40
  4. Step 4: Simplify right side
    105,033.80x = 10,340,903,214.78
  5. Step 5: Solve for x
    x = 10,340,903,214.78/105,033.80
  6. Step 6: Final answer
    x = 98,453.10

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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.