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Finding the Fourth Proportional to 467,038.60, 700,460.70 and 129,992.20

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Solution

The fourth proportional to 467,038.60, 700,460.70 and 129,992.20 is: 194,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,038.60 : 700,460.70 = 129,992.20 : x
  2. Step 2: Convert to fraction form
    467,038.60/700,460.70 = 129,992.20/x
  3. Step 3: Cross multiply
    467,038.60x = 700,460.70 × 129,992.20
  4. Step 4: Simplify right side
    467,038.60x = 91,054,427,406.54
  5. Step 5: Solve for x
    x = 91,054,427,406.54/467,038.60
  6. Step 6: Final answer
    x = 194,961.25

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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.