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Finding the Fourth Proportional to 104,980.95, 157,425.24 and 38,403.81

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Solution

The fourth proportional to 104,980.95, 157,425.24 and 38,403.81 is: 57,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,980.95 : 157,425.24 = 38,403.81 : x
  2. Step 2: Convert to fraction form
    104,980.95/157,425.24 = 38,403.81/x
  3. Step 3: Cross multiply
    104,980.95x = 157,425.24 × 38,403.81
  4. Step 4: Simplify right side
    104,980.95x = 6,045,729,006.16
  5. Step 5: Solve for x
    x = 6,045,729,006.16/104,980.95
  6. Step 6: Final answer
    x = 57,588.82

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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.