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Finding the Fourth Proportional to 74,328,134.40, 111,492,201.60 and 74,328,134.40

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Solution

The fourth proportional to 74,328,134.40, 111,492,201.60 and 74,328,134.40 is: 111,492,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328,134.40 : 111,492,201.60 = 74,328,134.40 : x
  2. Step 2: Convert to fraction form
    74,328,134.40/111,492,201.60 = 74,328,134.40/x
  3. Step 3: Cross multiply
    74,328,134.40x = 111,492,201.60 × 74,328,134.40
  4. Step 4: Simplify right side
    74,328,134.40x = 8,287,007,345,076,695
  5. Step 5: Solve for x
    x = 8,287,007,345,076,695/74,328,134.40
  6. Step 6: Final answer
    x = 111,492,201.60

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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.