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Finding the Fourth Proportional to 357,895.72, 536,449.74 and 147,418.84

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Solution

The fourth proportional to 357,895.72, 536,449.74 and 147,418.84 is: 220,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,895.72 : 536,449.74 = 147,418.84 : x
  2. Step 2: Convert to fraction form
    357,895.72/536,449.74 = 147,418.84/x
  3. Step 3: Cross multiply
    357,895.72x = 536,449.74 × 147,418.84
  4. Step 4: Simplify right side
    357,895.72x = 79,082,798,389.10
  5. Step 5: Solve for x
    x = 79,082,798,389.10/357,895.72
  6. Step 6: Final answer
    x = 220,966.04

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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.