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Finding the Fourth Proportional to 66,298,506.40, 99,447,759.60 and 66,298,506.40

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Solution

The fourth proportional to 66,298,506.40, 99,447,759.60 and 66,298,506.40 is: 99,447,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,298,506.40 : 99,447,759.60 = 66,298,506.40 : x
  2. Step 2: Convert to fraction form
    66,298,506.40/99,447,759.60 = 66,298,506.40/x
  3. Step 3: Cross multiply
    66,298,506.40x = 99,447,759.60 × 66,298,506.40
  4. Step 4: Simplify right side
    66,298,506.40x = 6,593,237,926,306,261
  5. Step 5: Solve for x
    x = 6,593,237,926,306,261/66,298,506.40
  6. Step 6: Final answer
    x = 99,447,759.60

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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.