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Finding the Fourth Proportional to 170,944.10, 256,339.35 and 65,728.10

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Solution

The fourth proportional to 170,944.10, 256,339.35 and 65,728.10 is: 98,562.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,944.10 : 256,339.35 = 65,728.10 : x
  2. Step 2: Convert to fraction form
    170,944.10/256,339.35 = 65,728.10/x
  3. Step 3: Cross multiply
    170,944.10x = 256,339.35 × 65,728.10
  4. Step 4: Simplify right side
    170,944.10x = 16,848,698,430.74
  5. Step 5: Solve for x
    x = 16,848,698,430.74/170,944.10
  6. Step 6: Final answer
    x = 98,562.62

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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.