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Finding the Fourth Proportional to 174,415.72, 261,652.74 and 69,235.60

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Solution

The fourth proportional to 174,415.72, 261,652.74 and 69,235.60 is: 103,864.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,415.72 : 261,652.74 = 69,235.60 : x
  2. Step 2: Convert to fraction form
    174,415.72/261,652.74 = 69,235.60/x
  3. Step 3: Cross multiply
    174,415.72x = 261,652.74 × 69,235.60
  4. Step 4: Simplify right side
    174,415.72x = 18,115,684,445.54
  5. Step 5: Solve for x
    x = 18,115,684,445.54/174,415.72
  6. Step 6: Final answer
    x = 103,864.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.