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Finding the Fourth Proportional to 225,053.38, 310,543.59 and 124,457.86

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Solution

The fourth proportional to 225,053.38, 310,543.59 and 124,457.86 is: 171,735.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,053.38 : 310,543.59 = 124,457.86 : x
  2. Step 2: Convert to fraction form
    225,053.38/310,543.59 = 124,457.86/x
  3. Step 3: Cross multiply
    225,053.38x = 310,543.59 × 124,457.86
  4. Step 4: Simplify right side
    225,053.38x = 38,649,589,871.76
  5. Step 5: Solve for x
    x = 38,649,589,871.76/225,053.38
  6. Step 6: Final answer
    x = 171,735.21

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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.