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Finding the Fourth Proportional to 170,859.60, 256,212.60 and 65,643.60

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Solution

The fourth proportional to 170,859.60, 256,212.60 and 65,643.60 is: 98,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,859.60 : 256,212.60 = 65,643.60 : x
  2. Step 2: Convert to fraction form
    170,859.60/256,212.60 = 65,643.60/x
  3. Step 3: Cross multiply
    170,859.60x = 256,212.60 × 65,643.60
  4. Step 4: Simplify right side
    170,859.60x = 16,818,717,429.36
  5. Step 5: Solve for x
    x = 16,818,717,429.36/170,859.60
  6. Step 6: Final answer
    x = 98,435.89

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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.