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Finding the Fourth Proportional to 356,934.94, 535,344.95 and 104,156.08

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Solution

The fourth proportional to 356,934.94, 535,344.95 and 104,156.08 is: 156,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,934.94 : 535,344.95 = 104,156.08 : x
  2. Step 2: Convert to fraction form
    356,934.94/535,344.95 = 104,156.08/x
  3. Step 3: Cross multiply
    356,934.94x = 535,344.95 × 104,156.08
  4. Step 4: Simplify right side
    356,934.94x = 55,759,430,361.82
  5. Step 5: Solve for x
    x = 55,759,430,361.82/356,934.94
  6. Step 6: Final answer
    x = 156,217.35

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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.