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Finding the Fourth Proportional to 156,978.60, 235,467.90 and 63,484.35

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Solution

The fourth proportional to 156,978.60, 235,467.90 and 63,484.35 is: 95,226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,978.60 : 235,467.90 = 63,484.35 : x
  2. Step 2: Convert to fraction form
    156,978.60/235,467.90 = 63,484.35/x
  3. Step 3: Cross multiply
    156,978.60x = 235,467.90 × 63,484.35
  4. Step 4: Simplify right side
    156,978.60x = 14,948,526,577.37
  5. Step 5: Solve for x
    x = 14,948,526,577.37/156,978.60
  6. Step 6: Final answer
    x = 95,226.53

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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.