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Finding the Fourth Proportional to 174,485.32, 261,752.46 and 85,742.32

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Solution

The fourth proportional to 174,485.32, 261,752.46 and 85,742.32 is: 128,625.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,485.32 : 261,752.46 = 85,742.32 : x
  2. Step 2: Convert to fraction form
    174,485.32/261,752.46 = 85,742.32/x
  3. Step 3: Cross multiply
    174,485.32x = 261,752.46 × 85,742.32
  4. Step 4: Simplify right side
    174,485.32x = 22,443,263,186.11
  5. Step 5: Solve for x
    x = 22,443,263,186.11/174,485.32
  6. Step 6: Final answer
    x = 128,625.51

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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.