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Finding the Fourth Proportional to 270,915.80, 406,393.18 and 93,420.25

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Solution

The fourth proportional to 270,915.80, 406,393.18 and 93,420.25 is: 140,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,915.80 : 406,393.18 = 93,420.25 : x
  2. Step 2: Convert to fraction form
    270,915.80/406,393.18 = 93,420.25/x
  3. Step 3: Cross multiply
    270,915.80x = 406,393.18 × 93,420.25
  4. Step 4: Simplify right side
    270,915.80x = 37,965,352,473.90
  5. Step 5: Solve for x
    x = 37,965,352,473.90/270,915.80
  6. Step 6: Final answer
    x = 140,137.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.