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Finding the Fourth Proportional to 74,328,129.90, 111,492,194.85 and 74,328,129.90

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Solution

The fourth proportional to 74,328,129.90, 111,492,194.85 and 74,328,129.90 is: 111,492,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328,129.90 : 111,492,194.85 = 74,328,129.90 : x
  2. Step 2: Convert to fraction form
    74,328,129.90/111,492,194.85 = 74,328,129.90/x
  3. Step 3: Cross multiply
    74,328,129.90x = 111,492,194.85 × 74,328,129.90
  4. Step 4: Simplify right side
    74,328,129.90x = 8,287,006,341,646,911
  5. Step 5: Solve for x
    x = 8,287,006,341,646,911/74,328,129.90
  6. Step 6: Final answer
    x = 111,492,194.85

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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.