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Finding the Fourth Proportional to 97,725.60, 146,491.20 and 45,043.20

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Solution

The fourth proportional to 97,725.60, 146,491.20 and 45,043.20 is: 67,520.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,725.60 : 146,491.20 = 45,043.20 : x
  2. Step 2: Convert to fraction form
    97,725.60/146,491.20 = 45,043.20/x
  3. Step 3: Cross multiply
    97,725.60x = 146,491.20 × 45,043.20
  4. Step 4: Simplify right side
    97,725.60x = 6,598,432,419.84
  5. Step 5: Solve for x
    x = 6,598,432,419.84/97,725.60
  6. Step 6: Final answer
    x = 67,520.00

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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.