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Finding the Fourth Proportional to 378,547.94, 567,900.28 and 153,908.41

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Solution

The fourth proportional to 378,547.94, 567,900.28 and 153,908.41 is: 230,894.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,547.94 : 567,900.28 = 153,908.41 : x
  2. Step 2: Convert to fraction form
    378,547.94/567,900.28 = 153,908.41/x
  3. Step 3: Cross multiply
    378,547.94x = 567,900.28 × 153,908.41
  4. Step 4: Simplify right side
    378,547.94x = 87,404,629,133.35
  5. Step 5: Solve for x
    x = 87,404,629,133.35/378,547.94
  6. Step 6: Final answer
    x = 230,894.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.