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Finding the Fourth Proportional to 98,658,607.62, 136,008,522.64 and 67,256,358.65

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Solution

The fourth proportional to 98,658,607.62, 136,008,522.64 and 67,256,358.65 is: 92,718,093.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,658,607.62 : 136,008,522.64 = 67,256,358.65 : x
  2. Step 2: Convert to fraction form
    98,658,607.62/136,008,522.64 = 67,256,358.65/x
  3. Step 3: Cross multiply
    98,658,607.62x = 136,008,522.64 × 67,256,358.65
  4. Step 4: Simplify right side
    98,658,607.62x = 9,147,437,978,132,484
  5. Step 5: Solve for x
    x = 9,147,437,978,132,484/98,658,607.62
  6. Step 6: Final answer
    x = 92,718,093.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.