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Finding the Fourth Proportional to 255,491.84, 383,070.88 and 122,367.84

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Solution

The fourth proportional to 255,491.84, 383,070.88 and 122,367.84 is: 183,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,491.84 : 383,070.88 = 122,367.84 : x
  2. Step 2: Convert to fraction form
    255,491.84/383,070.88 = 122,367.84/x
  3. Step 3: Cross multiply
    255,491.84x = 383,070.88 × 122,367.84
  4. Step 4: Simplify right side
    255,491.84x = 46,875,556,152.50
  5. Step 5: Solve for x
    x = 46,875,556,152.50/255,491.84
  6. Step 6: Final answer
    x = 183,471.83

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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.