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Finding the Fourth Proportional to 74,885,843.60, 105,066,929.20 and 74,885,843.60

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Solution

The fourth proportional to 74,885,843.60, 105,066,929.20 and 74,885,843.60 is: 105,066,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,885,843.60 : 105,066,929.20 = 74,885,843.60 : x
  2. Step 2: Convert to fraction form
    74,885,843.60/105,066,929.20 = 74,885,843.60/x
  3. Step 3: Cross multiply
    74,885,843.60x = 105,066,929.20 × 74,885,843.60
  4. Step 4: Simplify right side
    74,885,843.60x = 7,868,025,627,603,473
  5. Step 5: Solve for x
    x = 7,868,025,627,603,473/74,885,843.60
  6. Step 6: Final answer
    x = 105,066,929.20

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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.