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Finding the Fourth Proportional to 381,087.06, 571,630.80 and 96,798.93

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Solution

The fourth proportional to 381,087.06, 571,630.80 and 96,798.93 is: 145,198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,087.06 : 571,630.80 = 96,798.93 : x
  2. Step 2: Convert to fraction form
    381,087.06/571,630.80 = 96,798.93/x
  3. Step 3: Cross multiply
    381,087.06x = 571,630.80 × 96,798.93
  4. Step 4: Simplify right side
    381,087.06x = 55,333,249,795.04
  5. Step 5: Solve for x
    x = 55,333,249,795.04/381,087.06
  6. Step 6: Final answer
    x = 145,198.45

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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.