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Finding the Fourth Proportional to 170,697.30, 256,045.95 and 91,965.30

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Solution

The fourth proportional to 170,697.30, 256,045.95 and 91,965.30 is: 137,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,697.30 : 256,045.95 = 91,965.30 : x
  2. Step 2: Convert to fraction form
    170,697.30/256,045.95 = 91,965.30/x
  3. Step 3: Cross multiply
    170,697.30x = 256,045.95 × 91,965.30
  4. Step 4: Simplify right side
    170,697.30x = 23,547,342,605.54
  5. Step 5: Solve for x
    x = 23,547,342,605.54/170,697.30
  6. Step 6: Final answer
    x = 137,947.95

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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.