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Finding the Fourth Proportional to 105,554,491.40, 158,079,794.70 and 105,554,491.40

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Solution

The fourth proportional to 105,554,491.40, 158,079,794.70 and 105,554,491.40 is: 158,079,794.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,554,491.40 : 158,079,794.70 = 105,554,491.40 : x
  2. Step 2: Convert to fraction form
    105,554,491.40/158,079,794.70 = 105,554,491.40/x
  3. Step 3: Cross multiply
    105,554,491.40x = 158,079,794.70 × 105,554,491.40
  4. Step 4: Simplify right side
    105,554,491.40x = 16,686,032,330,174,916
  5. Step 5: Solve for x
    x = 16,686,032,330,174,916/105,554,491.40
  6. Step 6: Final answer
    x = 158,079,794.70

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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.