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Finding the Fourth Proportional to 318,135.78, 439,030.02 and 174,892.68

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Solution

The fourth proportional to 318,135.78, 439,030.02 and 174,892.68 is: 241,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,135.78 : 439,030.02 = 174,892.68 : x
  2. Step 2: Convert to fraction form
    318,135.78/439,030.02 = 174,892.68/x
  3. Step 3: Cross multiply
    318,135.78x = 439,030.02 × 174,892.68
  4. Step 4: Simplify right side
    318,135.78x = 76,783,136,798.25
  5. Step 5: Solve for x
    x = 76,783,136,798.25/318,135.78
  6. Step 6: Final answer
    x = 241,353.35

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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.