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Finding the Fourth Proportional to 108,814.16, 150,170.16 and 61,070.56

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Solution

The fourth proportional to 108,814.16, 150,170.16 and 61,070.56 is: 84,281.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,814.16 : 150,170.16 = 61,070.56 : x
  2. Step 2: Convert to fraction form
    108,814.16/150,170.16 = 61,070.56/x
  3. Step 3: Cross multiply
    108,814.16x = 150,170.16 × 61,070.56
  4. Step 4: Simplify right side
    108,814.16x = 9,170,975,766.49
  5. Step 5: Solve for x
    x = 9,170,975,766.49/108,814.16
  6. Step 6: Final answer
    x = 84,281.09

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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.