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Finding the Fourth Proportional to 70,416.92, 97,173.74 and 40,201.53

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Solution

The fourth proportional to 70,416.92, 97,173.74 and 40,201.53 is: 55,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,416.92 : 97,173.74 = 40,201.53 : x
  2. Step 2: Convert to fraction form
    70,416.92/97,173.74 = 40,201.53/x
  3. Step 3: Cross multiply
    70,416.92x = 97,173.74 × 40,201.53
  4. Step 4: Simplify right side
    70,416.92x = 3,906,532,822.81
  5. Step 5: Solve for x
    x = 3,906,532,822.81/70,416.92
  6. Step 6: Final answer
    x = 55,477.19

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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.