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Finding the Fourth Proportional to 86,895,074.40, 121,993,226.40 and 86,895,074.40

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Solution

The fourth proportional to 86,895,074.40, 121,993,226.40 and 86,895,074.40 is: 121,993,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,895,074.40 : 121,993,226.40 = 86,895,074.40 : x
  2. Step 2: Convert to fraction form
    86,895,074.40/121,993,226.40 = 86,895,074.40/x
  3. Step 3: Cross multiply
    86,895,074.40x = 121,993,226.40 × 86,895,074.40
  4. Step 4: Simplify right side
    86,895,074.40x = 10,600,610,484,324,046
  5. Step 5: Solve for x
    x = 10,600,610,484,324,046/86,895,074.40
  6. Step 6: Final answer
    x = 121,993,226.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.