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Finding the Fourth Proportional to 318,055.93, 477,107.06 and 118,376.26

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Solution

The fourth proportional to 318,055.93, 477,107.06 and 118,376.26 is: 177,573.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,055.93 : 477,107.06 = 118,376.26 : x
  2. Step 2: Convert to fraction form
    318,055.93/477,107.06 = 118,376.26/x
  3. Step 3: Cross multiply
    318,055.93x = 477,107.06 × 118,376.26
  4. Step 4: Simplify right side
    318,055.93x = 56,478,147,597.75
  5. Step 5: Solve for x
    x = 56,478,147,597.75/318,055.93
  6. Step 6: Final answer
    x = 177,573.01

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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.