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Finding the Fourth Proportional to 475,257.15, 712,735.02 and 155,336.67

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Solution

The fourth proportional to 475,257.15, 712,735.02 and 155,336.67 is: 232,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,257.15 : 712,735.02 = 155,336.67 : x
  2. Step 2: Convert to fraction form
    475,257.15/712,735.02 = 155,336.67/x
  3. Step 3: Cross multiply
    475,257.15x = 712,735.02 × 155,336.67
  4. Step 4: Simplify right side
    475,257.15x = 110,713,884,599.18
  5. Step 5: Solve for x
    x = 110,713,884,599.18/475,257.15
  6. Step 6: Final answer
    x = 232,955.75

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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.