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Finding the Fourth Proportional to 126,374.59, 174,394.60 and 69,784.75

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Solution

The fourth proportional to 126,374.59, 174,394.60 and 69,784.75 is: 96,301.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,374.59 : 174,394.60 = 69,784.75 : x
  2. Step 2: Convert to fraction form
    126,374.59/174,394.60 = 69,784.75/x
  3. Step 3: Cross multiply
    126,374.59x = 174,394.60 × 69,784.75
  4. Step 4: Simplify right side
    126,374.59x = 12,170,083,562.35
  5. Step 5: Solve for x
    x = 12,170,083,562.35/126,374.59
  6. Step 6: Final answer
    x = 96,301.67

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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.