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Finding the Fourth Proportional to 124,391.66, 171,660.54 and 70,676.75

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Solution

The fourth proportional to 124,391.66, 171,660.54 and 70,676.75 is: 97,533.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,391.66 : 171,660.54 = 70,676.75 : x
  2. Step 2: Convert to fraction form
    124,391.66/171,660.54 = 70,676.75/x
  3. Step 3: Cross multiply
    124,391.66x = 171,660.54 × 70,676.75
  4. Step 4: Simplify right side
    124,391.66x = 12,132,409,499.60
  5. Step 5: Solve for x
    x = 12,132,409,499.60/124,391.66
  6. Step 6: Final answer
    x = 97,533.94

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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.