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Finding the Fourth Proportional to 170,709.93, 256,097.85 and 65,520.70

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Solution

The fourth proportional to 170,709.93, 256,097.85 and 65,520.70 is: 98,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,709.93 : 256,097.85 = 65,520.70 : x
  2. Step 2: Convert to fraction form
    170,709.93/256,097.85 = 65,520.70/x
  3. Step 3: Cross multiply
    170,709.93x = 256,097.85 × 65,520.70
  4. Step 4: Simplify right side
    170,709.93x = 16,779,709,883.10
  5. Step 5: Solve for x
    x = 16,779,709,883.10/170,709.93
  6. Step 6: Final answer
    x = 98,293.70

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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.