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Finding the Fourth Proportional to 318,153.95, 439,048.50 and 174,912.74

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Solution

The fourth proportional to 318,153.95, 439,048.50 and 174,912.74 is: 241,377.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,153.95 : 439,048.50 = 174,912.74 : x
  2. Step 2: Convert to fraction form
    318,153.95/439,048.50 = 174,912.74/x
  3. Step 3: Cross multiply
    318,153.95x = 439,048.50 × 174,912.74
  4. Step 4: Simplify right side
    318,153.95x = 76,795,176,127.89
  5. Step 5: Solve for x
    x = 76,795,176,127.89/318,153.95
  6. Step 6: Final answer
    x = 241,377.41

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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.