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Finding the Fourth Proportional to 66,430,216.20, 92,787,069.08 and 66,430,216.20

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Solution

The fourth proportional to 66,430,216.20, 92,787,069.08 and 66,430,216.20 is: 92,787,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,216.20 : 92,787,069.08 = 66,430,216.20 : x
  2. Step 2: Convert to fraction form
    66,430,216.20/92,787,069.08 = 66,430,216.20/x
  3. Step 3: Cross multiply
    66,430,216.20x = 92,787,069.08 × 66,430,216.20
  4. Step 4: Simplify right side
    66,430,216.20x = 6,163,865,059,216,584
  5. Step 5: Solve for x
    x = 6,163,865,059,216,584/66,430,216.20
  6. Step 6: Final answer
    x = 92,787,069.08

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.