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Finding the Fourth Proportional to 254,476.80, 351,210.24 and 153,930.24

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Solution

The fourth proportional to 254,476.80, 351,210.24 and 153,930.24 is: 212,443.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,476.80 : 351,210.24 = 153,930.24 : x
  2. Step 2: Convert to fraction form
    254,476.80/351,210.24 = 153,930.24/x
  3. Step 3: Cross multiply
    254,476.80x = 351,210.24 × 153,930.24
  4. Step 4: Simplify right side
    254,476.80x = 54,061,876,533.66
  5. Step 5: Solve for x
    x = 54,061,876,533.66/254,476.80
  6. Step 6: Final answer
    x = 212,443.24

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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.