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Finding the Fourth Proportional to 357,895.76, 536,449.96 and 147,418.88

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Solution

The fourth proportional to 357,895.76, 536,449.96 and 147,418.88 is: 220,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,895.76 : 536,449.96 = 147,418.88 : x
  2. Step 2: Convert to fraction form
    357,895.76/536,449.96 = 147,418.88/x
  3. Step 3: Cross multiply
    357,895.76x = 536,449.96 × 147,418.88
  4. Step 4: Simplify right side
    357,895.76x = 79,082,852,279.24
  5. Step 5: Solve for x
    x = 79,082,852,279.24/357,895.76
  6. Step 6: Final answer
    x = 220,966.16

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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.