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Finding the Fourth Proportional to 66,066,679.65, 99,100,019.48 and 66,066,679.65

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Solution

The fourth proportional to 66,066,679.65, 99,100,019.48 and 66,066,679.65 is: 99,100,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,066,679.65 : 99,100,019.48 = 66,066,679.65 : x
  2. Step 2: Convert to fraction form
    66,066,679.65/99,100,019.48 = 66,066,679.65/x
  3. Step 3: Cross multiply
    66,066,679.65x = 99,100,019.48 × 66,066,679.65
  4. Step 4: Simplify right side
    66,066,679.65x = 6,547,209,239,963,586
  5. Step 5: Solve for x
    x = 6,547,209,239,963,586/66,066,679.65
  6. Step 6: Final answer
    x = 99,100,019.48

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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.