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Finding the Fourth Proportional to 121,422.30, 182,133.45 and 93,396.30

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Solution

The fourth proportional to 121,422.30, 182,133.45 and 93,396.30 is: 140,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,422.30 : 182,133.45 = 93,396.30 : x
  2. Step 2: Convert to fraction form
    121,422.30/182,133.45 = 93,396.30/x
  3. Step 3: Cross multiply
    121,422.30x = 182,133.45 × 93,396.30
  4. Step 4: Simplify right side
    121,422.30x = 17,010,590,336.24
  5. Step 5: Solve for x
    x = 17,010,590,336.24/121,422.30
  6. Step 6: Final answer
    x = 140,094.45

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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.