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Finding the Fourth Proportional to 107,985.60, 161,859.60 and 37,828.80

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Solution

The fourth proportional to 107,985.60, 161,859.60 and 37,828.80 is: 56,701.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,985.60 : 161,859.60 = 37,828.80 : x
  2. Step 2: Convert to fraction form
    107,985.60/161,859.60 = 37,828.80/x
  3. Step 3: Cross multiply
    107,985.60x = 161,859.60 × 37,828.80
  4. Step 4: Simplify right side
    107,985.60x = 6,122,954,436.48
  5. Step 5: Solve for x
    x = 6,122,954,436.48/107,985.60
  6. Step 6: Final answer
    x = 56,701.58

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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.