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Finding the Fourth Proportional to 306,752.01, 423,316.82 and 170,782.44

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Solution

The fourth proportional to 306,752.01, 423,316.82 and 170,782.44 is: 235,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,752.01 : 423,316.82 = 170,782.44 : x
  2. Step 2: Convert to fraction form
    306,752.01/423,316.82 = 170,782.44/x
  3. Step 3: Cross multiply
    306,752.01x = 423,316.82 × 170,782.44
  4. Step 4: Simplify right side
    306,752.01x = 72,295,079,412.64
  5. Step 5: Solve for x
    x = 72,295,079,412.64/306,752.01
  6. Step 6: Final answer
    x = 235,679.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.