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Finding the Fourth Proportional to 156,374.40, 234,561.60 and 97,276.80

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Solution

The fourth proportional to 156,374.40, 234,561.60 and 97,276.80 is: 145,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,374.40 : 234,561.60 = 97,276.80 : x
  2. Step 2: Convert to fraction form
    156,374.40/234,561.60 = 97,276.80/x
  3. Step 3: Cross multiply
    156,374.40x = 234,561.60 × 97,276.80
  4. Step 4: Simplify right side
    156,374.40x = 22,817,401,850.88
  5. Step 5: Solve for x
    x = 22,817,401,850.88/156,374.40
  6. Step 6: Final answer
    x = 145,915.20

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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.