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Finding the Fourth Proportional to 318,358.08, 477,271.44 and 118,566.72

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Solution

The fourth proportional to 318,358.08, 477,271.44 and 118,566.72 is: 177,751.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,358.08 : 477,271.44 = 118,566.72 : x
  2. Step 2: Convert to fraction form
    318,358.08/477,271.44 = 118,566.72/x
  3. Step 3: Cross multiply
    318,358.08x = 477,271.44 × 118,566.72
  4. Step 4: Simplify right side
    318,358.08x = 56,588,509,190.48
  5. Step 5: Solve for x
    x = 56,588,509,190.48/318,358.08
  6. Step 6: Final answer
    x = 177,751.13

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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.