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Finding the Fourth Proportional to 101,541.40, 152,081.70 and 64,216.60

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Solution

The fourth proportional to 101,541.40, 152,081.70 and 64,216.60 is: 96,179.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,541.40 : 152,081.70 = 64,216.60 : x
  2. Step 2: Convert to fraction form
    101,541.40/152,081.70 = 64,216.60/x
  3. Step 3: Cross multiply
    101,541.40x = 152,081.70 × 64,216.60
  4. Step 4: Simplify right side
    101,541.40x = 9,766,169,696.22
  5. Step 5: Solve for x
    x = 9,766,169,696.22/101,541.40
  6. Step 6: Final answer
    x = 96,179.19

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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.