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Finding the Fourth Proportional to 64,901.28, 97,343.28 and 41,281.68

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Solution

The fourth proportional to 64,901.28, 97,343.28 and 41,281.68 is: 61,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,901.28 : 97,343.28 = 41,281.68 : x
  2. Step 2: Convert to fraction form
    64,901.28/97,343.28 = 41,281.68/x
  3. Step 3: Cross multiply
    64,901.28x = 97,343.28 × 41,281.68
  4. Step 4: Simplify right side
    64,901.28x = 4,018,494,135.11
  5. Step 5: Solve for x
    x = 4,018,494,135.11/64,901.28
  6. Step 6: Final answer
    x = 61,917.02

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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.