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Finding the Fourth Proportional to 59,784,940.80, 89,677,411.20 and 45,329,745.60

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Solution

The fourth proportional to 59,784,940.80, 89,677,411.20 and 45,329,745.60 is: 67,994,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,784,940.80 : 89,677,411.20 = 45,329,745.60 : x
  2. Step 2: Convert to fraction form
    59,784,940.80/89,677,411.20 = 45,329,745.60/x
  3. Step 3: Cross multiply
    59,784,940.80x = 89,677,411.20 × 45,329,745.60
  4. Step 4: Simplify right side
    59,784,940.80x = 4,065,054,235,762,591
  5. Step 5: Solve for x
    x = 4,065,054,235,762,591/59,784,940.80
  6. Step 6: Final answer
    x = 67,994,618.40

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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.