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Finding the Fourth Proportional to 91,866,411.88, 137,795,038.62 and 34,354,454.92

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Solution

The fourth proportional to 91,866,411.88, 137,795,038.62 and 34,354,454.92 is: 51,529,969.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,866,411.88 : 137,795,038.62 = 34,354,454.92 : x
  2. Step 2: Convert to fraction form
    91,866,411.88/137,795,038.62 = 34,354,454.92/x
  3. Step 3: Cross multiply
    91,866,411.88x = 137,795,038.62 × 34,354,454.92
  4. Step 4: Simplify right side
    91,866,411.88x = 4,733,873,442,470,449
  5. Step 5: Solve for x
    x = 4,733,873,442,470,449/91,866,411.88
  6. Step 6: Final answer
    x = 51,529,969.94

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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.