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Finding the Fourth Proportional to 477,015.95, 715,520.27 and 122,029.40

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Solution

The fourth proportional to 477,015.95, 715,520.27 and 122,029.40 is: 183,043.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,015.95 : 715,520.27 = 122,029.40 : x
  2. Step 2: Convert to fraction form
    477,015.95/715,520.27 = 122,029.40/x
  3. Step 3: Cross multiply
    477,015.95x = 715,520.27 × 122,029.40
  4. Step 4: Simplify right side
    477,015.95x = 87,314,511,329.81
  5. Step 5: Solve for x
    x = 87,314,511,329.81/477,015.95
  6. Step 6: Final answer
    x = 183,043.17

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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.