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Finding the Fourth Proportional to 172,937.35, 238,617.25 and 104,990.10

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Solution

The fourth proportional to 172,937.35, 238,617.25 and 104,990.10 is: 144,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,937.35 : 238,617.25 = 104,990.10 : x
  2. Step 2: Convert to fraction form
    172,937.35/238,617.25 = 104,990.10/x
  3. Step 3: Cross multiply
    172,937.35x = 238,617.25 × 104,990.10
  4. Step 4: Simplify right side
    172,937.35x = 25,052,448,939.23
  5. Step 5: Solve for x
    x = 25,052,448,939.23/172,937.35
  6. Step 6: Final answer
    x = 144,864.30

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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.