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Finding the Fourth Proportional to 98,006.76, 147,010.28 and 64,936.89

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Solution

The fourth proportional to 98,006.76, 147,010.28 and 64,936.89 is: 97,405.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,006.76 : 147,010.28 = 64,936.89 : x
  2. Step 2: Convert to fraction form
    98,006.76/147,010.28 = 64,936.89/x
  3. Step 3: Cross multiply
    98,006.76x = 147,010.28 × 64,936.89
  4. Step 4: Simplify right side
    98,006.76x = 9,546,390,056.54
  5. Step 5: Solve for x
    x = 9,546,390,056.54/98,006.76
  6. Step 6: Final answer
    x = 97,405.42

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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.