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Finding the Fourth Proportional to 310,069.89, 427,891.01 and 174,104.91

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Solution

The fourth proportional to 310,069.89, 427,891.01 and 174,104.91 is: 240,261.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,069.89 : 427,891.01 = 174,104.91 : x
  2. Step 2: Convert to fraction form
    310,069.89/427,891.01 = 174,104.91/x
  3. Step 3: Cross multiply
    310,069.89x = 427,891.01 × 174,104.91
  4. Step 4: Simplify right side
    310,069.89x = 74,497,924,915.33
  5. Step 5: Solve for x
    x = 74,497,924,915.33/310,069.89
  6. Step 6: Final answer
    x = 240,261.72

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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.