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Finding the Fourth Proportional to 233,220.94, 349,830.21 and 91,080.64

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Solution

The fourth proportional to 233,220.94, 349,830.21 and 91,080.64 is: 136,620.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,220.94 : 349,830.21 = 91,080.64 : x
  2. Step 2: Convert to fraction form
    233,220.94/349,830.21 = 91,080.64/x
  3. Step 3: Cross multiply
    233,220.94x = 349,830.21 × 91,080.64
  4. Step 4: Simplify right side
    233,220.94x = 31,862,759,418.13
  5. Step 5: Solve for x
    x = 31,862,759,418.13/233,220.94
  6. Step 6: Final answer
    x = 136,620.49

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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.