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Finding the Fourth Proportional to 330,145.95, 495,074.70 and 116,842.96

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Solution

The fourth proportional to 330,145.95, 495,074.70 and 116,842.96 is: 175,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,145.95 : 495,074.70 = 116,842.96 : x
  2. Step 2: Convert to fraction form
    330,145.95/495,074.70 = 116,842.96/x
  3. Step 3: Cross multiply
    330,145.95x = 495,074.70 × 116,842.96
  4. Step 4: Simplify right side
    330,145.95x = 57,845,993,369.11
  5. Step 5: Solve for x
    x = 57,845,993,369.11/330,145.95
  6. Step 6: Final answer
    x = 175,213.40

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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.