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Finding the Fourth Proportional to 74,701.50, 112,071.45 and 25,453.50

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Solution

The fourth proportional to 74,701.50, 112,071.45 and 25,453.50 is: 38,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.50 : 112,071.45 = 25,453.50 : x
  2. Step 2: Convert to fraction form
    74,701.50/112,071.45 = 25,453.50/x
  3. Step 3: Cross multiply
    74,701.50x = 112,071.45 × 25,453.50
  4. Step 4: Simplify right side
    74,701.50x = 2,852,610,652.58
  5. Step 5: Solve for x
    x = 2,852,610,652.58/74,701.50
  6. Step 6: Final answer
    x = 38,186.79

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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.