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Finding the Fourth Proportional to 255,392.84, 352,458.04 and 140,671.46

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Solution

The fourth proportional to 255,392.84, 352,458.04 and 140,671.46 is: 194,135.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,392.84 : 352,458.04 = 140,671.46 : x
  2. Step 2: Convert to fraction form
    255,392.84/352,458.04 = 140,671.46/x
  3. Step 3: Cross multiply
    255,392.84x = 352,458.04 × 140,671.46
  4. Step 4: Simplify right side
    255,392.84x = 49,580,787,075.54
  5. Step 5: Solve for x
    x = 49,580,787,075.54/255,392.84
  6. Step 6: Final answer
    x = 194,135.38

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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.