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Finding the Fourth Proportional to 477,029.60, 715,539.36 and 122,040.80

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Solution

The fourth proportional to 477,029.60, 715,539.36 and 122,040.80 is: 183,059.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,029.60 : 715,539.36 = 122,040.80 : x
  2. Step 2: Convert to fraction form
    477,029.60/715,539.36 = 122,040.80/x
  3. Step 3: Cross multiply
    477,029.60x = 715,539.36 × 122,040.80
  4. Step 4: Simplify right side
    477,029.60x = 87,324,995,925.89
  5. Step 5: Solve for x
    x = 87,324,995,925.89/477,029.60
  6. Step 6: Final answer
    x = 183,059.91

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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.