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Finding the Fourth Proportional to 76,322.61, 114,460.58 and 52,781.45

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Solution

The fourth proportional to 76,322.61, 114,460.58 and 52,781.45 is: 79,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,322.61 : 114,460.58 = 52,781.45 : x
  2. Step 2: Convert to fraction form
    76,322.61/114,460.58 = 52,781.45/x
  3. Step 3: Cross multiply
    76,322.61x = 114,460.58 × 52,781.45
  4. Step 4: Simplify right side
    76,322.61x = 6,041,394,544.03
  5. Step 5: Solve for x
    x = 6,041,394,544.03/76,322.61
  6. Step 6: Final answer
    x = 79,156.03

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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.