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Finding the Fourth Proportional to 477,112.22, 715,651.93 and 122,129.32

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Solution

The fourth proportional to 477,112.22, 715,651.93 and 122,129.32 is: 183,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,112.22 : 715,651.93 = 122,129.32 : x
  2. Step 2: Convert to fraction form
    477,112.22/715,651.93 = 122,129.32/x
  3. Step 3: Cross multiply
    477,112.22x = 715,651.93 × 122,129.32
  4. Step 4: Simplify right side
    477,112.22x = 87,402,081,931.12
  5. Step 5: Solve for x
    x = 87,402,081,931.12/477,112.22
  6. Step 6: Final answer
    x = 183,189.78

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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.