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Finding the Fourth Proportional to 10,369,550.78, 15,554,326.16 and 10,369,550.78

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Solution

The fourth proportional to 10,369,550.78, 15,554,326.16 and 10,369,550.78 is: 15,554,326.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369,550.78 : 15,554,326.16 = 10,369,550.78 : x
  2. Step 2: Convert to fraction form
    10,369,550.78/15,554,326.16 = 10,369,550.78/x
  3. Step 3: Cross multiply
    10,369,550.78x = 15,554,326.16 × 10,369,550.78
  4. Step 4: Simplify right side
    10,369,550.78x = 161,291,374,912,954.66
  5. Step 5: Solve for x
    x = 161,291,374,912,954.66/10,369,550.78
  6. Step 6: Final answer
    x = 15,554,326.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.