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Finding the Fourth Proportional to 126,545, 174,616.94 and 69,948.68

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Solution

The fourth proportional to 126,545, 174,616.94 and 69,948.68 is: 96,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,545 : 174,616.94 = 69,948.68 : x
  2. Step 2: Convert to fraction form
    126,545/174,616.94 = 69,948.68/x
  3. Step 3: Cross multiply
    126,545x = 174,616.94 × 69,948.68
  4. Step 4: Simplify right side
    126,545x = 12,214,224,458.64
  5. Step 5: Solve for x
    x = 12,214,224,458.64/126,545
  6. Step 6: Final answer
    x = 96,520.80

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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.