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Finding the Fourth Proportional to 70,416.75, 97,175.12 and 40,608.75

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Solution

The fourth proportional to 70,416.75, 97,175.12 and 40,608.75 is: 56,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,416.75 : 97,175.12 = 40,608.75 : x
  2. Step 2: Convert to fraction form
    70,416.75/97,175.12 = 40,608.75/x
  3. Step 3: Cross multiply
    70,416.75x = 97,175.12 × 40,608.75
  4. Step 4: Simplify right side
    70,416.75x = 3,946,159,951.26
  5. Step 5: Solve for x
    x = 3,946,159,951.26/70,416.75
  6. Step 6: Final answer
    x = 56,040.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.