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Finding the Fourth Proportional to 359,212.94, 495,688.51 and 198,064.56

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Solution

The fourth proportional to 359,212.94, 495,688.51 and 198,064.56 is: 273,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,212.94 : 495,688.51 = 198,064.56 : x
  2. Step 2: Convert to fraction form
    359,212.94/495,688.51 = 198,064.56/x
  3. Step 3: Cross multiply
    359,212.94x = 495,688.51 × 198,064.56
  4. Step 4: Simplify right side
    359,212.94x = 98,178,325,948.37
  5. Step 5: Solve for x
    x = 98,178,325,948.37/359,212.94
  6. Step 6: Final answer
    x = 273,315.11

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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.