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Finding the Fourth Proportional to 477,015.72, 715,516.26 and 122,026.74

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Solution

The fourth proportional to 477,015.72, 715,516.26 and 122,026.74 is: 183,038.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,015.72 : 715,516.26 = 122,026.74 : x
  2. Step 2: Convert to fraction form
    477,015.72/715,516.26 = 122,026.74/x
  3. Step 3: Cross multiply
    477,015.72x = 715,516.26 × 122,026.74
  4. Step 4: Simplify right side
    477,015.72x = 87,312,116,624.79
  5. Step 5: Solve for x
    x = 87,312,116,624.79/477,015.72
  6. Step 6: Final answer
    x = 183,038.24

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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.