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Finding the Fourth Proportional to 255,176.87, 382,913.60 and 141,336.23

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Solution

The fourth proportional to 255,176.87, 382,913.60 and 141,336.23 is: 212,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,176.87 : 382,913.60 = 141,336.23 : x
  2. Step 2: Convert to fraction form
    255,176.87/382,913.60 = 141,336.23/x
  3. Step 3: Cross multiply
    255,176.87x = 382,913.60 × 141,336.23
  4. Step 4: Simplify right side
    255,176.87x = 54,119,562,018.48
  5. Step 5: Solve for x
    x = 54,119,562,018.48/255,176.87
  6. Step 6: Final answer
    x = 212,086.48

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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.