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Finding the Fourth Proportional to 318,203.50, 439,109.59 and 174,962.54

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Solution

The fourth proportional to 318,203.50, 439,109.59 and 174,962.54 is: 241,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,203.50 : 439,109.59 = 174,962.54 : x
  2. Step 2: Convert to fraction form
    318,203.50/439,109.59 = 174,962.54/x
  3. Step 3: Cross multiply
    318,203.50x = 439,109.59 × 174,962.54
  4. Step 4: Simplify right side
    318,203.50x = 76,827,729,204.76
  5. Step 5: Solve for x
    x = 76,827,729,204.76/318,203.50
  6. Step 6: Final answer
    x = 241,442.12

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1.5x scale

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.