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Finding the Fourth Proportional to 357,862.06, 493,855.78 and 196,723.90

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Solution

The fourth proportional to 357,862.06, 493,855.78 and 196,723.90 is: 271,482.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,862.06 : 493,855.78 = 196,723.90 : x
  2. Step 2: Convert to fraction form
    357,862.06/493,855.78 = 196,723.90/x
  3. Step 3: Cross multiply
    357,862.06x = 493,855.78 × 196,723.90
  4. Step 4: Simplify right side
    357,862.06x = 97,153,233,352.69
  5. Step 5: Solve for x
    x = 97,153,233,352.69/357,862.06
  6. Step 6: Final answer
    x = 271,482.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.