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Finding the Fourth Proportional to 273,787,794.88, 410,681,692.32 and 66,525,140.58

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Solution

The fourth proportional to 273,787,794.88, 410,681,692.32 and 66,525,140.58 is: 99,787,710.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,787,794.88 : 410,681,692.32 = 66,525,140.58 : x
  2. Step 2: Convert to fraction form
    273,787,794.88/410,681,692.32 = 66,525,140.58/x
  3. Step 3: Cross multiply
    273,787,794.88x = 410,681,692.32 × 66,525,140.58
  4. Step 4: Simplify right side
    273,787,794.88x = 27,320,657,316,302,336
  5. Step 5: Solve for x
    x = 27,320,657,316,302,336/273,787,794.88
  6. Step 6: Final answer
    x = 99,787,710.87

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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.