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Finding the Fourth Proportional to 219,805.16, 303,329.10 and 124,330.52

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Solution

The fourth proportional to 219,805.16, 303,329.10 and 124,330.52 is: 171,574.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,805.16 : 303,329.10 = 124,330.52 : x
  2. Step 2: Convert to fraction form
    219,805.16/303,329.10 = 124,330.52/x
  3. Step 3: Cross multiply
    219,805.16x = 303,329.10 × 124,330.52
  4. Step 4: Simplify right side
    219,805.16x = 37,713,064,734.13
  5. Step 5: Solve for x
    x = 37,713,064,734.13/219,805.16
  6. Step 6: Final answer
    x = 171,574.97

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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.