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Finding the Fourth Proportional to 164,523.60, 246,785.40 and 139,640.40

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Solution

The fourth proportional to 164,523.60, 246,785.40 and 139,640.40 is: 209,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,523.60 : 246,785.40 = 139,640.40 : x
  2. Step 2: Convert to fraction form
    164,523.60/246,785.40 = 139,640.40/x
  3. Step 3: Cross multiply
    164,523.60x = 246,785.40 × 139,640.40
  4. Step 4: Simplify right side
    164,523.60x = 34,461,211,970.16
  5. Step 5: Solve for x
    x = 34,461,211,970.16/164,523.60
  6. Step 6: Final answer
    x = 209,460.60

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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.