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Finding the Fourth Proportional to 127,503.51, 191,277.13 and 38,765.98

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Solution

The fourth proportional to 127,503.51, 191,277.13 and 38,765.98 is: 58,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,503.51 : 191,277.13 = 38,765.98 : x
  2. Step 2: Convert to fraction form
    127,503.51/191,277.13 = 38,765.98/x
  3. Step 3: Cross multiply
    127,503.51x = 191,277.13 × 38,765.98
  4. Step 4: Simplify right side
    127,503.51x = 7,415,045,396.04
  5. Step 5: Solve for x
    x = 7,415,045,396.04/127,503.51
  6. Step 6: Final answer
    x = 58,155.62

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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.