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Finding the Fourth Proportional to 99,266.40, 148,899.60 and 52,610.40

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Solution

The fourth proportional to 99,266.40, 148,899.60 and 52,610.40 is: 78,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,266.40 : 148,899.60 = 52,610.40 : x
  2. Step 2: Convert to fraction form
    99,266.40/148,899.60 = 52,610.40/x
  3. Step 3: Cross multiply
    99,266.40x = 148,899.60 × 52,610.40
  4. Step 4: Simplify right side
    99,266.40x = 7,833,667,515.84
  5. Step 5: Solve for x
    x = 7,833,667,515.84/99,266.40
  6. Step 6: Final answer
    x = 78,915.60

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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.