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Finding the Fourth Proportional to 225,053.13, 310,543.25 and 124,457.61

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Solution

The fourth proportional to 225,053.13, 310,543.25 and 124,457.61 is: 171,734.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,053.13 : 310,543.25 = 124,457.61 : x
  2. Step 2: Convert to fraction form
    225,053.13/310,543.25 = 124,457.61/x
  3. Step 3: Cross multiply
    225,053.13x = 310,543.25 × 124,457.61
  4. Step 4: Simplify right side
    225,053.13x = 38,649,470,696.63
  5. Step 5: Solve for x
    x = 38,649,470,696.63/225,053.13
  6. Step 6: Final answer
    x = 171,734.87

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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.