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Finding the Fourth Proportional to 127,808.01, 191,705.04 and 39,061.49

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Solution

The fourth proportional to 127,808.01, 191,705.04 and 39,061.49 is: 58,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,808.01 : 191,705.04 = 39,061.49 : x
  2. Step 2: Convert to fraction form
    127,808.01/191,705.04 = 39,061.49/x
  3. Step 3: Cross multiply
    127,808.01x = 191,705.04 × 39,061.49
  4. Step 4: Simplify right side
    127,808.01x = 7,488,283,544.38
  5. Step 5: Solve for x
    x = 7,488,283,544.38/127,808.01
  6. Step 6: Final answer
    x = 58,590.10

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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.