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Finding the Fourth Proportional to 107,130.75, 147,798.37 and 68,884.22

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Solution

The fourth proportional to 107,130.75, 147,798.37 and 68,884.22 is: 95,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,130.75 : 147,798.37 = 68,884.22 : x
  2. Step 2: Convert to fraction form
    107,130.75/147,798.37 = 68,884.22/x
  3. Step 3: Cross multiply
    107,130.75x = 147,798.37 × 68,884.22
  4. Step 4: Simplify right side
    107,130.75x = 10,180,975,890.32
  5. Step 5: Solve for x
    x = 10,180,975,890.32/107,130.75
  6. Step 6: Final answer
    x = 95,033.18

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1.5x scale

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.