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Finding the Fourth Proportional to 176,487.12, 264,471.48 and 139,138.56

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Solution

The fourth proportional to 176,487.12, 264,471.48 and 139,138.56 is: 208,503.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,487.12 : 264,471.48 = 139,138.56 : x
  2. Step 2: Convert to fraction form
    176,487.12/264,471.48 = 139,138.56/x
  3. Step 3: Cross multiply
    176,487.12x = 264,471.48 × 139,138.56
  4. Step 4: Simplify right side
    176,487.12x = 36,798,180,888.27
  5. Step 5: Solve for x
    x = 36,798,180,888.27/176,487.12
  6. Step 6: Final answer
    x = 208,503.49

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1.5x scale

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.