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Finding the Fourth Proportional to 261,995.60, 393,166.20 and 95,783.60

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Solution

The fourth proportional to 261,995.60, 393,166.20 and 95,783.60 is: 143,738.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,995.60 : 393,166.20 = 95,783.60 : x
  2. Step 2: Convert to fraction form
    261,995.60/393,166.20 = 95,783.60/x
  3. Step 3: Cross multiply
    261,995.60x = 393,166.20 × 95,783.60
  4. Step 4: Simplify right side
    261,995.60x = 37,658,874,034.32
  5. Step 5: Solve for x
    x = 37,658,874,034.32/261,995.60
  6. Step 6: Final answer
    x = 143,738.57

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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.