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Finding the Fourth Proportional to 122,016.70, 183,025.05 and 43,130.30

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Solution

The fourth proportional to 122,016.70, 183,025.05 and 43,130.30 is: 64,695.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,016.70 : 183,025.05 = 43,130.30 : x
  2. Step 2: Convert to fraction form
    122,016.70/183,025.05 = 43,130.30/x
  3. Step 3: Cross multiply
    122,016.70x = 183,025.05 × 43,130.30
  4. Step 4: Simplify right side
    122,016.70x = 7,893,925,314.02
  5. Step 5: Solve for x
    x = 7,893,925,314.02/122,016.70
  6. Step 6: Final answer
    x = 64,695.45

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1.5x scale

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.