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Finding the Fourth Proportional to 475,214.49, 712,747.20 and 155,364.12

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Solution

The fourth proportional to 475,214.49, 712,747.20 and 155,364.12 is: 233,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,214.49 : 712,747.20 = 155,364.12 : x
  2. Step 2: Convert to fraction form
    475,214.49/712,747.20 = 155,364.12/x
  3. Step 3: Cross multiply
    475,214.49x = 712,747.20 × 155,364.12
  4. Step 4: Simplify right side
    475,214.49x = 110,735,341,510.46
  5. Step 5: Solve for x
    x = 110,735,341,510.46/475,214.49
  6. Step 6: Final answer
    x = 233,021.81

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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.