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Finding the Fourth Proportional to 170,233.92, 255,368.16 and 65,141.28

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Solution

The fourth proportional to 170,233.92, 255,368.16 and 65,141.28 is: 97,718.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,233.92 : 255,368.16 = 65,141.28 : x
  2. Step 2: Convert to fraction form
    170,233.92/255,368.16 = 65,141.28/x
  3. Step 3: Cross multiply
    170,233.92x = 255,368.16 × 65,141.28
  4. Step 4: Simplify right side
    170,233.92x = 16,635,008,813.64
  5. Step 5: Solve for x
    x = 16,635,008,813.64/170,233.92
  6. Step 6: Final answer
    x = 97,718.53

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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.