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Finding the Fourth Proportional to 118,394.94, 163,387.44 and 64,683.44

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Solution

The fourth proportional to 118,394.94, 163,387.44 and 64,683.44 is: 89,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,394.94 : 163,387.44 = 64,683.44 : x
  2. Step 2: Convert to fraction form
    118,394.94/163,387.44 = 64,683.44/x
  3. Step 3: Cross multiply
    118,394.94x = 163,387.44 × 64,683.44
  4. Step 4: Simplify right side
    118,394.94x = 10,568,461,671.99
  5. Step 5: Solve for x
    x = 10,568,461,671.99/118,394.94
  6. Step 6: Final answer
    x = 89,264.47

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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.