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Finding the Fourth Proportional to 102,770.29, 153,780.54 and 60,670.54

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Solution

The fourth proportional to 102,770.29, 153,780.54 and 60,670.54 is: 90,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,770.29 : 153,780.54 = 60,670.54 : x
  2. Step 2: Convert to fraction form
    102,770.29/153,780.54 = 60,670.54/x
  3. Step 3: Cross multiply
    102,770.29x = 153,780.54 × 60,670.54
  4. Step 4: Simplify right side
    102,770.29x = 9,329,948,403.29
  5. Step 5: Solve for x
    x = 9,329,948,403.29/102,770.29
  6. Step 6: Final answer
    x = 90,784.49

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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.