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Finding the Fourth Proportional to 464,139.63, 696,210.05 and 127,183.28

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Solution

The fourth proportional to 464,139.63, 696,210.05 and 127,183.28 is: 190,775.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,139.63 : 696,210.05 = 127,183.28 : x
  2. Step 2: Convert to fraction form
    464,139.63/696,210.05 = 127,183.28/x
  3. Step 3: Cross multiply
    464,139.63x = 696,210.05 × 127,183.28
  4. Step 4: Simplify right side
    464,139.63x = 88,546,274,564.87
  5. Step 5: Solve for x
    x = 88,546,274,564.87/464,139.63
  6. Step 6: Final answer
    x = 190,775.08

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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.