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Finding the Fourth Proportional to 170,442.45, 255,663.68 and 65,261.42

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Solution

The fourth proportional to 170,442.45, 255,663.68 and 65,261.42 is: 97,892.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,442.45 : 255,663.68 = 65,261.42 : x
  2. Step 2: Convert to fraction form
    170,442.45/255,663.68 = 65,261.42/x
  3. Step 3: Cross multiply
    170,442.45x = 255,663.68 × 65,261.42
  4. Step 4: Simplify right side
    170,442.45x = 16,684,974,799.23
  5. Step 5: Solve for x
    x = 16,684,974,799.23/170,442.45
  6. Step 6: Final answer
    x = 97,892.13

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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.