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Finding the Fourth Proportional to 127,385.70, 191,109.84 and 63,374.06

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Solution

The fourth proportional to 127,385.70, 191,109.84 and 63,374.06 is: 95,076.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,385.70 : 191,109.84 = 63,374.06 : x
  2. Step 2: Convert to fraction form
    127,385.70/191,109.84 = 63,374.06/x
  3. Step 3: Cross multiply
    127,385.70x = 191,109.84 × 63,374.06
  4. Step 4: Simplify right side
    127,385.70x = 12,111,406,466.75
  5. Step 5: Solve for x
    x = 12,111,406,466.75/127,385.70
  6. Step 6: Final answer
    x = 95,076.66

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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.