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Finding the Fourth Proportional to 118,283.14, 163,231.14 and 64,569.34

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Solution

The fourth proportional to 118,283.14, 163,231.14 and 64,569.34 is: 89,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,283.14 : 163,231.14 = 64,569.34 : x
  2. Step 2: Convert to fraction form
    118,283.14/163,231.14 = 64,569.34/x
  3. Step 3: Cross multiply
    118,283.14x = 163,231.14 × 64,569.34
  4. Step 4: Simplify right side
    118,283.14x = 10,539,726,977.25
  5. Step 5: Solve for x
    x = 10,539,726,977.25/118,283.14
  6. Step 6: Final answer
    x = 89,105.91

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1.5x scale

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.