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Finding the Fourth Proportional to 181,606.60, 272,312.70 and 76,306.60

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Solution

The fourth proportional to 181,606.60, 272,312.70 and 76,306.60 is: 114,419.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,606.60 : 272,312.70 = 76,306.60 : x
  2. Step 2: Convert to fraction form
    181,606.60/272,312.70 = 76,306.60/x
  3. Step 3: Cross multiply
    181,606.60x = 272,312.70 × 76,306.60
  4. Step 4: Simplify right side
    181,606.60x = 20,779,256,273.82
  5. Step 5: Solve for x
    x = 20,779,256,273.82/181,606.60
  6. Step 6: Final answer
    x = 114,419.06

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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.