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Finding the Fourth Proportional to 250,485.76, 345,684.45 and 148,571.56

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Solution

The fourth proportional to 250,485.76, 345,684.45 and 148,571.56 is: 205,037.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,485.76 : 345,684.45 = 148,571.56 : x
  2. Step 2: Convert to fraction form
    250,485.76/345,684.45 = 148,571.56/x
  3. Step 3: Cross multiply
    250,485.76x = 345,684.45 × 148,571.56
  4. Step 4: Simplify right side
    250,485.76x = 51,358,878,004.24
  5. Step 5: Solve for x
    x = 51,358,878,004.24/250,485.76
  6. Step 6: Final answer
    x = 205,037.12

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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.