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Finding the Fourth Proportional to 67,978,370.88, 93,808,970.64 and 37,038,794.40

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Solution

The fourth proportional to 67,978,370.88, 93,808,970.64 and 37,038,794.40 is: 51,112,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,978,370.88 : 93,808,970.64 = 37,038,794.40 : x
  2. Step 2: Convert to fraction form
    67,978,370.88/93,808,970.64 = 37,038,794.40/x
  3. Step 3: Cross multiply
    67,978,370.88x = 93,808,970.64 × 37,038,794.40
  4. Step 4: Simplify right side
    67,978,370.88x = 3,474,571,176,410,596.50
  5. Step 5: Solve for x
    x = 3,474,571,176,410,596.50/67,978,370.88
  6. Step 6: Final answer
    x = 51,112,892.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.