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Finding the Fourth Proportional to 369,908.16, 554,965.92 and 148,447.68

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Solution

The fourth proportional to 369,908.16, 554,965.92 and 148,447.68 is: 222,713.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,908.16 : 554,965.92 = 148,447.68 : x
  2. Step 2: Convert to fraction form
    369,908.16/554,965.92 = 148,447.68/x
  3. Step 3: Cross multiply
    369,908.16x = 554,965.92 × 148,447.68
  4. Step 4: Simplify right side
    369,908.16x = 82,383,403,303.07
  5. Step 5: Solve for x
    x = 82,383,403,303.07/369,908.16
  6. Step 6: Final answer
    x = 222,713.13

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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.