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Finding the Fourth Proportional to 225,243, 310,845.06 and 124,641

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Solution

The fourth proportional to 225,243, 310,845.06 and 124,641 is: 172,009.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,243 : 310,845.06 = 124,641 : x
  2. Step 2: Convert to fraction form
    225,243/310,845.06 = 124,641/x
  3. Step 3: Cross multiply
    225,243x = 310,845.06 × 124,641
  4. Step 4: Simplify right side
    225,243x = 38,744,039,123.46
  5. Step 5: Solve for x
    x = 38,744,039,123.46/225,243
  6. Step 6: Final answer
    x = 172,009.96

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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.