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Finding the Fourth Proportional to 475,070.03, 712,604.86 and 190,760.49

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Solution

The fourth proportional to 475,070.03, 712,604.86 and 190,760.49 is: 286,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,070.03 : 712,604.86 = 190,760.49 : x
  2. Step 2: Convert to fraction form
    475,070.03/712,604.86 = 190,760.49/x
  3. Step 3: Cross multiply
    475,070.03x = 712,604.86 × 190,760.49
  4. Step 4: Simplify right side
    475,070.03x = 135,936,853,606.12
  5. Step 5: Solve for x
    x = 135,936,853,606.12/475,070.03
  6. Step 6: Final answer
    x = 286,140.67

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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.