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Finding the Fourth Proportional to 358,763.50, 495,093.63 and 197,618.05

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Solution

The fourth proportional to 358,763.50, 495,093.63 and 197,618.05 is: 272,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,763.50 : 495,093.63 = 197,618.05 : x
  2. Step 2: Convert to fraction form
    358,763.50/495,093.63 = 197,618.05/x
  3. Step 3: Cross multiply
    358,763.50x = 495,093.63 × 197,618.05
  4. Step 4: Simplify right side
    358,763.50x = 97,839,437,728.02
  5. Step 5: Solve for x
    x = 97,839,437,728.02/358,763.50
  6. Step 6: Final answer
    x = 272,712.91

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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.