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Finding the Fourth Proportional to 172,513.36, 236,796.50 and 153,228.88

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Solution

The fourth proportional to 172,513.36, 236,796.50 and 153,228.88 is: 210,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,513.36 : 236,796.50 = 153,228.88 : x
  2. Step 2: Convert to fraction form
    172,513.36/236,796.50 = 153,228.88/x
  3. Step 3: Cross multiply
    172,513.36x = 236,796.50 × 153,228.88
  4. Step 4: Simplify right side
    172,513.36x = 36,284,062,482.92
  5. Step 5: Solve for x
    x = 36,284,062,482.92/172,513.36
  6. Step 6: Final answer
    x = 210,326.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.