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Finding the Fourth Proportional to 113,265.51, 169,897.51 and 38,438.34

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Solution

The fourth proportional to 113,265.51, 169,897.51 and 38,438.34 is: 57,657.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,265.51 : 169,897.51 = 38,438.34 : x
  2. Step 2: Convert to fraction form
    113,265.51/169,897.51 = 38,438.34/x
  3. Step 3: Cross multiply
    113,265.51x = 169,897.51 × 38,438.34
  4. Step 4: Simplify right side
    113,265.51x = 6,530,578,035.19
  5. Step 5: Solve for x
    x = 6,530,578,035.19/113,265.51
  6. Step 6: Final answer
    x = 57,657.25

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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.