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Finding the Fourth Proportional to 94,786,226.60, 142,019,907.60 and 81,075,048.80

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Solution

The fourth proportional to 94,786,226.60, 142,019,907.60 and 81,075,048.80 is: 121,476,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,786,226.60 : 142,019,907.60 = 81,075,048.80 : x
  2. Step 2: Convert to fraction form
    94,786,226.60/142,019,907.60 = 81,075,048.80/x
  3. Step 3: Cross multiply
    94,786,226.60x = 142,019,907.60 × 81,075,048.80
  4. Step 4: Simplify right side
    94,786,226.60x = 11,514,270,939,241,490
  5. Step 5: Solve for x
    x = 11,514,270,939,241,490/94,786,226.60
  6. Step 6: Final answer
    x = 121,476,203.37

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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.