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Finding the Fourth Proportional to 255,673.04, 383,483.64 and 68,660.24

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Solution

The fourth proportional to 255,673.04, 383,483.64 and 68,660.24 is: 102,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,673.04 : 383,483.64 = 68,660.24 : x
  2. Step 2: Convert to fraction form
    255,673.04/383,483.64 = 68,660.24/x
  3. Step 3: Cross multiply
    255,673.04x = 383,483.64 × 68,660.24
  4. Step 4: Simplify right side
    255,673.04x = 26,330,078,758.47
  5. Step 5: Solve for x
    x = 26,330,078,758.47/255,673.04
  6. Step 6: Final answer
    x = 102,983.40

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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.