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Finding the Fourth Proportional to 118,371.66, 163,355.88 and 64,656.06

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Solution

The fourth proportional to 118,371.66, 163,355.88 and 64,656.06 is: 89,227.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,371.66 : 163,355.88 = 64,656.06 : x
  2. Step 2: Convert to fraction form
    118,371.66/163,355.88 = 64,656.06/x
  3. Step 3: Cross multiply
    118,371.66x = 163,355.88 × 64,656.06
  4. Step 4: Simplify right side
    118,371.66x = 10,561,947,578.63
  5. Step 5: Solve for x
    x = 10,561,947,578.63/118,371.66
  6. Step 6: Final answer
    x = 89,227.00

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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.