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Finding the Fourth Proportional to 176,447.92, 243,527.16 and 128,858.80

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Solution

The fourth proportional to 176,447.92, 243,527.16 and 128,858.80 is: 177,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,447.92 : 243,527.16 = 128,858.80 : x
  2. Step 2: Convert to fraction form
    176,447.92/243,527.16 = 128,858.80/x
  3. Step 3: Cross multiply
    176,447.92x = 243,527.16 × 128,858.80
  4. Step 4: Simplify right side
    176,447.92x = 31,380,617,605.01
  5. Step 5: Solve for x
    x = 31,380,617,605.01/176,447.92
  6. Step 6: Final answer
    x = 177,846.34

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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.