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Finding the Fourth Proportional to 225,246.24, 310,842 and 124,644

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Solution

The fourth proportional to 225,246.24, 310,842 and 124,644 is: 172,009.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,246.24 : 310,842 = 124,644 : x
  2. Step 2: Convert to fraction form
    225,246.24/310,842 = 124,644/x
  3. Step 3: Cross multiply
    225,246.24x = 310,842 × 124,644
  4. Step 4: Simplify right side
    225,246.24x = 38,744,590,248
  5. Step 5: Solve for x
    x = 38,744,590,248/225,246.24
  6. Step 6: Final answer
    x = 172,009.93

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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.