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Finding the Fourth Proportional to 318,303.95, 439,271.98 and 175,077.32

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Solution

The fourth proportional to 318,303.95, 439,271.98 and 175,077.32 is: 241,613.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,303.95 : 439,271.98 = 175,077.32 : x
  2. Step 2: Convert to fraction form
    318,303.95/439,271.98 = 175,077.32/x
  3. Step 3: Cross multiply
    318,303.95x = 439,271.98 × 175,077.32
  4. Step 4: Simplify right side
    318,303.95x = 76,906,558,375.44
  5. Step 5: Solve for x
    x = 76,906,558,375.44/318,303.95
  6. Step 6: Final answer
    x = 241,613.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.