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Finding the Fourth Proportional to 255,862.60, 383,295.06 and 155,774.56

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Solution

The fourth proportional to 255,862.60, 383,295.06 and 155,774.56 is: 233,358.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,862.60 : 383,295.06 = 155,774.56 : x
  2. Step 2: Convert to fraction form
    255,862.60/383,295.06 = 155,774.56/x
  3. Step 3: Cross multiply
    255,862.60x = 383,295.06 × 155,774.56
  4. Step 4: Simplify right side
    255,862.60x = 59,707,619,321.67
  5. Step 5: Solve for x
    x = 59,707,619,321.67/255,862.60
  6. Step 6: Final answer
    x = 233,358.14

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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.