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Finding the Fourth Proportional to 104,606.88, 156,788.64 and 48,328.80

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Solution

The fourth proportional to 104,606.88, 156,788.64 and 48,328.80 is: 72,436.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,606.88 : 156,788.64 = 48,328.80 : x
  2. Step 2: Convert to fraction form
    104,606.88/156,788.64 = 48,328.80/x
  3. Step 3: Cross multiply
    104,606.88x = 156,788.64 × 48,328.80
  4. Step 4: Simplify right side
    104,606.88x = 7,577,406,824.83
  5. Step 5: Solve for x
    x = 7,577,406,824.83/104,606.88
  6. Step 6: Final answer
    x = 72,436.98

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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.