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Finding the Fourth Proportional to 369,489.88, 554,315.20 and 113,322.58

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Solution

The fourth proportional to 369,489.88, 554,315.20 and 113,322.58 is: 170,008.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,489.88 : 554,315.20 = 113,322.58 : x
  2. Step 2: Convert to fraction form
    369,489.88/554,315.20 = 113,322.58/x
  3. Step 3: Cross multiply
    369,489.88x = 554,315.20 × 113,322.58
  4. Step 4: Simplify right side
    369,489.88x = 62,816,428,597.22
  5. Step 5: Solve for x
    x = 62,816,428,597.22/369,489.88
  6. Step 6: Final answer
    x = 170,008.52

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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.