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Finding the Fourth Proportional to 369,995.40, 554,896.78 and 156,653.53

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Solution

The fourth proportional to 369,995.40, 554,896.78 and 156,653.53 is: 234,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,995.40 : 554,896.78 = 156,653.53 : x
  2. Step 2: Convert to fraction form
    369,995.40/554,896.78 = 156,653.53/x
  3. Step 3: Cross multiply
    369,995.40x = 554,896.78 × 156,653.53
  4. Step 4: Simplify right side
    369,995.40x = 86,926,537,593.76
  5. Step 5: Solve for x
    x = 86,926,537,593.76/369,995.40
  6. Step 6: Final answer
    x = 234,939.51

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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.