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Finding the Fourth Proportional to 477,110.54, 715,649.40 and 122,127.63

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Solution

The fourth proportional to 477,110.54, 715,649.40 and 122,127.63 is: 183,187.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,110.54 : 715,649.40 = 122,127.63 : x
  2. Step 2: Convert to fraction form
    477,110.54/715,649.40 = 122,127.63/x
  3. Step 3: Cross multiply
    477,110.54x = 715,649.40 × 122,127.63
  4. Step 4: Simplify right side
    477,110.54x = 87,400,565,132.92
  5. Step 5: Solve for x
    x = 87,400,565,132.92/477,110.54
  6. Step 6: Final answer
    x = 183,187.25

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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.