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Finding the Fourth Proportional to 76,048.44, 104,948.64 and 42,057.54

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Solution

The fourth proportional to 76,048.44, 104,948.64 and 42,057.54 is: 58,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,048.44 : 104,948.64 = 42,057.54 : x
  2. Step 2: Convert to fraction form
    76,048.44/104,948.64 = 42,057.54/x
  3. Step 3: Cross multiply
    76,048.44x = 104,948.64 × 42,057.54
  4. Step 4: Simplify right side
    76,048.44x = 4,413,881,624.75
  5. Step 5: Solve for x
    x = 4,413,881,624.75/76,048.44
  6. Step 6: Final answer
    x = 58,040.40

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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.