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Finding the Fourth Proportional to 170,339.91, 255,316.11 and 103,633

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Solution

The fourth proportional to 170,339.91, 255,316.11 and 103,633 is: 155,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,339.91 : 255,316.11 = 103,633 : x
  2. Step 2: Convert to fraction form
    170,339.91/255,316.11 = 103,633/x
  3. Step 3: Cross multiply
    170,339.91x = 255,316.11 × 103,633
  4. Step 4: Simplify right side
    170,339.91x = 26,459,174,427.63
  5. Step 5: Solve for x
    x = 26,459,174,427.63/170,339.91
  6. Step 6: Final answer
    x = 155,331.62

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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.