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Finding the Fourth Proportional to 255,624.75, 352,764.62 and 140,907.81

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Solution

The fourth proportional to 255,624.75, 352,764.62 and 140,907.81 is: 194,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,624.75 : 352,764.62 = 140,907.81 : x
  2. Step 2: Convert to fraction form
    255,624.75/352,764.62 = 140,907.81/x
  3. Step 3: Cross multiply
    255,624.75x = 352,764.62 × 140,907.81
  4. Step 4: Simplify right side
    255,624.75x = 49,707,289,345.14
  5. Step 5: Solve for x
    x = 49,707,289,345.14/255,624.75
  6. Step 6: Final answer
    x = 194,454.13

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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.