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Finding the Fourth Proportional to 118,167.78, 163,071.43 and 64,452.63

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Solution

The fourth proportional to 118,167.78, 163,071.43 and 64,452.63 is: 88,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,167.78 : 163,071.43 = 64,452.63 : x
  2. Step 2: Convert to fraction form
    118,167.78/163,071.43 = 64,452.63/x
  3. Step 3: Cross multiply
    118,167.78x = 163,071.43 × 64,452.63
  4. Step 4: Simplify right side
    118,167.78x = 10,510,382,541.36
  5. Step 5: Solve for x
    x = 10,510,382,541.36/118,167.78
  6. Step 6: Final answer
    x = 88,944.57

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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.