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Finding the Fourth Proportional to 101,763.54, 140,420.52 and 56,441.34

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Solution

The fourth proportional to 101,763.54, 140,420.52 and 56,441.34 is: 77,881.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,763.54 : 140,420.52 = 56,441.34 : x
  2. Step 2: Convert to fraction form
    101,763.54/140,420.52 = 56,441.34/x
  3. Step 3: Cross multiply
    101,763.54x = 140,420.52 × 56,441.34
  4. Step 4: Simplify right side
    101,763.54x = 7,925,522,312.30
  5. Step 5: Solve for x
    x = 7,925,522,312.30/101,763.54
  6. Step 6: Final answer
    x = 77,881.75

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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.