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Finding the Fourth Proportional to 477,071.69, 715,606.92 and 122,085.81

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Solution

The fourth proportional to 477,071.69, 715,606.92 and 122,085.81 is: 183,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,071.69 : 715,606.92 = 122,085.81 : x
  2. Step 2: Convert to fraction form
    477,071.69/715,606.92 = 122,085.81/x
  3. Step 3: Cross multiply
    477,071.69x = 715,606.92 × 122,085.81
  4. Step 4: Simplify right side
    477,071.69x = 87,365,450,469.81
  5. Step 5: Solve for x
    x = 87,365,450,469.81/477,071.69
  6. Step 6: Final answer
    x = 183,128.56

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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.