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Finding the Fourth Proportional to 553,468.88, 830,188.71 and 154,093.52

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Solution

The fourth proportional to 553,468.88, 830,188.71 and 154,093.52 is: 231,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,468.88 : 830,188.71 = 154,093.52 : x
  2. Step 2: Convert to fraction form
    553,468.88/830,188.71 = 154,093.52/x
  3. Step 3: Cross multiply
    553,468.88x = 830,188.71 × 154,093.52
  4. Step 4: Simplify right side
    553,468.88x = 127,926,696,437.22
  5. Step 5: Solve for x
    x = 127,926,696,437.22/553,468.88
  6. Step 6: Final answer
    x = 231,136.21

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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.