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Finding the Fourth Proportional to 170,751.20, 256,139.18 and 65,570.18

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Solution

The fourth proportional to 170,751.20, 256,139.18 and 65,570.18 is: 98,360.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,751.20 : 256,139.18 = 65,570.18 : x
  2. Step 2: Convert to fraction form
    170,751.20/256,139.18 = 65,570.18/x
  3. Step 3: Cross multiply
    170,751.20x = 256,139.18 × 65,570.18
  4. Step 4: Simplify right side
    170,751.20x = 16,795,090,529.11
  5. Step 5: Solve for x
    x = 16,795,090,529.11/170,751.20
  6. Step 6: Final answer
    x = 98,360.02

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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.