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Finding the Fourth Proportional to 144,714.40, 217,071.60 and 65,982.40

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Solution

The fourth proportional to 144,714.40, 217,071.60 and 65,982.40 is: 98,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,714.40 : 217,071.60 = 65,982.40 : x
  2. Step 2: Convert to fraction form
    144,714.40/217,071.60 = 65,982.40/x
  3. Step 3: Cross multiply
    144,714.40x = 217,071.60 × 65,982.40
  4. Step 4: Simplify right side
    144,714.40x = 14,322,905,139.84
  5. Step 5: Solve for x
    x = 14,322,905,139.84/144,714.40
  6. Step 6: Final answer
    x = 98,973.60

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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.