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Finding the Fourth Proportional to 84,994,712.90, 127,492,069.35 and 27,528,226.10

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Solution

The fourth proportional to 84,994,712.90, 127,492,069.35 and 27,528,226.10 is: 41,292,339.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,994,712.90 : 127,492,069.35 = 27,528,226.10 : x
  2. Step 2: Convert to fraction form
    84,994,712.90/127,492,069.35 = 27,528,226.10/x
  3. Step 3: Cross multiply
    84,994,712.90x = 127,492,069.35 × 27,528,226.10
  4. Step 4: Simplify right side
    84,994,712.90x = 3,509,630,511,023,680
  5. Step 5: Solve for x
    x = 3,509,630,511,023,680/84,994,712.90
  6. Step 6: Final answer
    x = 41,292,339.15

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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.