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Finding the Fourth Proportional to 74,208,018.35, 103,678,889.05 and 74,208,018.35

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Solution

The fourth proportional to 74,208,018.35, 103,678,889.05 and 74,208,018.35 is: 103,678,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,208,018.35 : 103,678,889.05 = 74,208,018.35 : x
  2. Step 2: Convert to fraction form
    74,208,018.35/103,678,889.05 = 74,208,018.35/x
  3. Step 3: Cross multiply
    74,208,018.35x = 103,678,889.05 × 74,208,018.35
  4. Step 4: Simplify right side
    74,208,018.35x = 7,693,804,901,130,013
  5. Step 5: Solve for x
    x = 7,693,804,901,130,013/74,208,018.35
  6. Step 6: Final answer
    x = 103,678,889.05

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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.