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Finding the Fourth Proportional to 72,602.19, 108,886.86 and 27,607.46

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Solution

The fourth proportional to 72,602.19, 108,886.86 and 27,607.46 is: 41,404.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,602.19 : 108,886.86 = 27,607.46 : x
  2. Step 2: Convert to fraction form
    72,602.19/108,886.86 = 27,607.46/x
  3. Step 3: Cross multiply
    72,602.19x = 108,886.86 × 27,607.46
  4. Step 4: Simplify right side
    72,602.19x = 3,006,089,316.14
  5. Step 5: Solve for x
    x = 3,006,089,316.14/72,602.19
  6. Step 6: Final answer
    x = 41,404.94

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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.