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Finding the Fourth Proportional to 255,708.40, 383,562.60 and 97,855.60

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Solution

The fourth proportional to 255,708.40, 383,562.60 and 97,855.60 is: 146,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,708.40 : 383,562.60 = 97,855.60 : x
  2. Step 2: Convert to fraction form
    255,708.40/383,562.60 = 97,855.60/x
  3. Step 3: Cross multiply
    255,708.40x = 383,562.60 × 97,855.60
  4. Step 4: Simplify right side
    255,708.40x = 37,533,748,360.56
  5. Step 5: Solve for x
    x = 37,533,748,360.56/255,708.40
  6. Step 6: Final answer
    x = 146,783.40

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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.