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Finding the Fourth Proportional to 70,467.84, 97,258.05 and 42,173.46

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Solution

The fourth proportional to 70,467.84, 97,258.05 and 42,173.46 is: 58,206.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,467.84 : 97,258.05 = 42,173.46 : x
  2. Step 2: Convert to fraction form
    70,467.84/97,258.05 = 42,173.46/x
  3. Step 3: Cross multiply
    70,467.84x = 97,258.05 × 42,173.46
  4. Step 4: Simplify right side
    70,467.84x = 4,101,708,481.35
  5. Step 5: Solve for x
    x = 4,101,708,481.35/70,467.84
  6. Step 6: Final answer
    x = 58,206.81

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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.