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Finding the Fourth Proportional to 174,261.40, 261,392.10 and 69,026.20

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Solution

The fourth proportional to 174,261.40, 261,392.10 and 69,026.20 is: 103,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,261.40 : 261,392.10 = 69,026.20 : x
  2. Step 2: Convert to fraction form
    174,261.40/261,392.10 = 69,026.20/x
  3. Step 3: Cross multiply
    174,261.40x = 261,392.10 × 69,026.20
  4. Step 4: Simplify right side
    174,261.40x = 18,042,903,373.02
  5. Step 5: Solve for x
    x = 18,042,903,373.02/174,261.40
  6. Step 6: Final answer
    x = 103,539.30

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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.