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Finding the Fourth Proportional to 99,262.40, 148,893.60 and 69,713.60

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Solution

The fourth proportional to 99,262.40, 148,893.60 and 69,713.60 is: 104,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,262.40 : 148,893.60 = 69,713.60 : x
  2. Step 2: Convert to fraction form
    99,262.40/148,893.60 = 69,713.60/x
  3. Step 3: Cross multiply
    99,262.40x = 148,893.60 × 69,713.60
  4. Step 4: Simplify right side
    99,262.40x = 10,379,908,872.96
  5. Step 5: Solve for x
    x = 10,379,908,872.96/99,262.40
  6. Step 6: Final answer
    x = 104,570.40

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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.