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Finding the Fourth Proportional to 170,955.13, 256,443.64 and 65,774.10

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Solution

The fourth proportional to 170,955.13, 256,443.64 and 65,774.10 is: 98,665.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,955.13 : 256,443.64 = 65,774.10 : x
  2. Step 2: Convert to fraction form
    170,955.13/256,443.64 = 65,774.10/x
  3. Step 3: Cross multiply
    170,955.13x = 256,443.64 × 65,774.10
  4. Step 4: Simplify right side
    170,955.13x = 16,867,349,621.72
  5. Step 5: Solve for x
    x = 16,867,349,621.72/170,955.13
  6. Step 6: Final answer
    x = 98,665.36

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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.