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Finding the Fourth Proportional to 170,848.40, 256,272.60 and 65,670.80

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Solution

The fourth proportional to 170,848.40, 256,272.60 and 65,670.80 is: 98,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,848.40 : 256,272.60 = 65,670.80 : x
  2. Step 2: Convert to fraction form
    170,848.40/256,272.60 = 65,670.80/x
  3. Step 3: Cross multiply
    170,848.40x = 256,272.60 × 65,670.80
  4. Step 4: Simplify right side
    170,848.40x = 16,829,626,660.08
  5. Step 5: Solve for x
    x = 16,829,626,660.08/170,848.40
  6. Step 6: Final answer
    x = 98,506.20

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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.