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Finding the Fourth Proportional to 358,859.94, 537,887.58 and 145,578.30

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Solution

The fourth proportional to 358,859.94, 537,887.58 and 145,578.30 is: 218,204.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,859.94 : 537,887.58 = 145,578.30 : x
  2. Step 2: Convert to fraction form
    358,859.94/537,887.58 = 145,578.30/x
  3. Step 3: Cross multiply
    358,859.94x = 537,887.58 × 145,578.30
  4. Step 4: Simplify right side
    358,859.94x = 78,304,759,487.51
  5. Step 5: Solve for x
    x = 78,304,759,487.51/358,859.94
  6. Step 6: Final answer
    x = 218,204.24

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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.