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Finding the Fourth Proportional to 168,461.73, 232,393.29 and 100,430.76

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Solution

The fourth proportional to 168,461.73, 232,393.29 and 100,430.76 is: 138,544.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,461.73 : 232,393.29 = 100,430.76 : x
  2. Step 2: Convert to fraction form
    168,461.73/232,393.29 = 100,430.76/x
  3. Step 3: Cross multiply
    168,461.73x = 232,393.29 × 100,430.76
  4. Step 4: Simplify right side
    168,461.73x = 23,339,434,733.60
  5. Step 5: Solve for x
    x = 23,339,434,733.60/168,461.73
  6. Step 6: Final answer
    x = 138,544.43

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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.