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Finding the Fourth Proportional to 357,893.73, 536,446.95 and 147,416.85

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Solution

The fourth proportional to 357,893.73, 536,446.95 and 147,416.85 is: 220,963.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,893.73 : 536,446.95 = 147,416.85 : x
  2. Step 2: Convert to fraction form
    357,893.73/536,446.95 = 147,416.85/x
  3. Step 3: Cross multiply
    357,893.73x = 536,446.95 × 147,416.85
  4. Step 4: Simplify right side
    357,893.73x = 79,081,319,561.11
  5. Step 5: Solve for x
    x = 79,081,319,561.11/357,893.73
  6. Step 6: Final answer
    x = 220,963.13

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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.