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Finding the Fourth Proportional to 124,354.44, 171,636.84 and 79,023.57

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Solution

The fourth proportional to 124,354.44, 171,636.84 and 79,023.57 is: 109,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,354.44 : 171,636.84 = 79,023.57 : x
  2. Step 2: Convert to fraction form
    124,354.44/171,636.84 = 79,023.57/x
  3. Step 3: Cross multiply
    124,354.44x = 171,636.84 × 79,023.57
  4. Step 4: Simplify right side
    124,354.44x = 13,563,355,840.32
  5. Step 5: Solve for x
    x = 13,563,355,840.32/124,354.44
  6. Step 6: Final answer
    x = 109,070.14

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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.