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Finding the Fourth Proportional to 170,927.20, 256,435.60 and 65,749.60

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Solution

The fourth proportional to 170,927.20, 256,435.60 and 65,749.60 is: 98,641.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,927.20 : 256,435.60 = 65,749.60 : x
  2. Step 2: Convert to fraction form
    170,927.20/256,435.60 = 65,749.60/x
  3. Step 3: Cross multiply
    170,927.20x = 256,435.60 × 65,749.60
  4. Step 4: Simplify right side
    170,927.20x = 16,860,538,125.76
  5. Step 5: Solve for x
    x = 16,860,538,125.76/170,927.20
  6. Step 6: Final answer
    x = 98,641.63

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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.