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Finding the Fourth Proportional to 225,752.67, 311,544.63 and 127,628.10

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Solution

The fourth proportional to 225,752.67, 311,544.63 and 127,628.10 is: 176,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,752.67 : 311,544.63 = 127,628.10 : x
  2. Step 2: Convert to fraction form
    225,752.67/311,544.63 = 127,628.10/x
  3. Step 3: Cross multiply
    225,752.67x = 311,544.63 × 127,628.10
  4. Step 4: Simplify right side
    225,752.67x = 39,761,849,192.10
  5. Step 5: Solve for x
    x = 39,761,849,192.10/225,752.67
  6. Step 6: Final answer
    x = 176,130.14

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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.