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Finding the Fourth Proportional to 66,440,098.80, 99,471,191.40 and 66,440,098.80

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Solution

The fourth proportional to 66,440,098.80, 99,471,191.40 and 66,440,098.80 is: 99,471,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440,098.80 : 99,471,191.40 = 66,440,098.80 : x
  2. Step 2: Convert to fraction form
    66,440,098.80/99,471,191.40 = 66,440,098.80/x
  3. Step 3: Cross multiply
    66,440,098.80x = 99,471,191.40 × 66,440,098.80
  4. Step 4: Simplify right side
    66,440,098.80x = 6,608,875,784,369,710
  5. Step 5: Solve for x
    x = 6,608,875,784,369,710/66,440,098.80
  6. Step 6: Final answer
    x = 99,471,191.40

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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.