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Finding the Fourth Proportional to 355,526.66, 490,627.68 and 194,392.11

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Solution

The fourth proportional to 355,526.66, 490,627.68 and 194,392.11 is: 268,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,526.66 : 490,627.68 = 194,392.11 : x
  2. Step 2: Convert to fraction form
    355,526.66/490,627.68 = 194,392.11/x
  3. Step 3: Cross multiply
    355,526.66x = 490,627.68 × 194,392.11
  4. Step 4: Simplify right side
    355,526.66x = 95,374,148,967.64
  5. Step 5: Solve for x
    x = 95,374,148,967.64/355,526.66
  6. Step 6: Final answer
    x = 268,261.60

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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.