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Finding the Fourth Proportional to 118,473.72, 163,493.44 and 67,486.40

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Solution

The fourth proportional to 118,473.72, 163,493.44 and 67,486.40 is: 93,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,473.72 : 163,493.44 = 67,486.40 : x
  2. Step 2: Convert to fraction form
    118,473.72/163,493.44 = 67,486.40/x
  3. Step 3: Cross multiply
    118,473.72x = 163,493.44 × 67,486.40
  4. Step 4: Simplify right side
    118,473.72x = 11,033,583,689.22
  5. Step 5: Solve for x
    x = 11,033,583,689.22/118,473.72
  6. Step 6: Final answer
    x = 93,131.06

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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.