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Finding the Fourth Proportional to 104,672.70, 144,445.41 and 56,928.06

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Solution

The fourth proportional to 104,672.70, 144,445.41 and 56,928.06 is: 78,559.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,672.70 : 144,445.41 = 56,928.06 : x
  2. Step 2: Convert to fraction form
    104,672.70/144,445.41 = 56,928.06/x
  3. Step 3: Cross multiply
    104,672.70x = 144,445.41 × 56,928.06
  4. Step 4: Simplify right side
    104,672.70x = 8,222,996,967.20
  5. Step 5: Solve for x
    x = 8,222,996,967.20/104,672.70
  6. Step 6: Final answer
    x = 78,559.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.