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Finding the Fourth Proportional to 176,478.83, 243,546.65 and 103,868.56

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Solution

The fourth proportional to 176,478.83, 243,546.65 and 103,868.56 is: 143,342.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,478.83 : 243,546.65 = 103,868.56 : x
  2. Step 2: Convert to fraction form
    176,478.83/243,546.65 = 103,868.56/x
  3. Step 3: Cross multiply
    176,478.83x = 243,546.65 × 103,868.56
  4. Step 4: Simplify right side
    176,478.83x = 25,296,840,002.92
  5. Step 5: Solve for x
    x = 25,296,840,002.92/176,478.83
  6. Step 6: Final answer
    x = 143,342.06

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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.