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Finding the Fourth Proportional to 99,205.60, 148,635.60 and 83,653.60

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Solution

The fourth proportional to 99,205.60, 148,635.60 and 83,653.60 is: 125,334.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,205.60 : 148,635.60 = 83,653.60 : x
  2. Step 2: Convert to fraction form
    99,205.60/148,635.60 = 83,653.60/x
  3. Step 3: Cross multiply
    99,205.60x = 148,635.60 × 83,653.60
  4. Step 4: Simplify right side
    99,205.60x = 12,433,903,028.16
  5. Step 5: Solve for x
    x = 12,433,903,028.16/99,205.60
  6. Step 6: Final answer
    x = 125,334.69

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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.