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Finding the Fourth Proportional to 97,221.40, 145,832.10 and 93,074.20

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Solution

The fourth proportional to 97,221.40, 145,832.10 and 93,074.20 is: 139,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,221.40 : 145,832.10 = 93,074.20 : x
  2. Step 2: Convert to fraction form
    97,221.40/145,832.10 = 93,074.20/x
  3. Step 3: Cross multiply
    97,221.40x = 145,832.10 × 93,074.20
  4. Step 4: Simplify right side
    97,221.40x = 13,573,206,041.82
  5. Step 5: Solve for x
    x = 13,573,206,041.82/97,221.40
  6. Step 6: Final answer
    x = 139,611.30

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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.