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Finding the Fourth Proportional to 118,296.53, 163,251.68 and 64,583.81

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Solution

The fourth proportional to 118,296.53, 163,251.68 and 64,583.81 is: 89,127.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,296.53 : 163,251.68 = 64,583.81 : x
  2. Step 2: Convert to fraction form
    118,296.53/163,251.68 = 64,583.81/x
  3. Step 3: Cross multiply
    118,296.53x = 163,251.68 × 64,583.81
  4. Step 4: Simplify right side
    118,296.53x = 10,543,415,483.30
  5. Step 5: Solve for x
    x = 10,543,415,483.30/118,296.53
  6. Step 6: Final answer
    x = 89,127.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.