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Finding the Fourth Proportional to 47,317,813.40, 66,424,097.80 and 47,317,813.40

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Solution

The fourth proportional to 47,317,813.40, 66,424,097.80 and 47,317,813.40 is: 66,424,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,317,813.40 : 66,424,097.80 = 47,317,813.40 : x
  2. Step 2: Convert to fraction form
    47,317,813.40/66,424,097.80 = 47,317,813.40/x
  3. Step 3: Cross multiply
    47,317,813.40x = 66,424,097.80 × 47,317,813.40
  4. Step 4: Simplify right side
    47,317,813.40x = 3,143,043,064,963,750.50
  5. Step 5: Solve for x
    x = 3,143,043,064,963,750.50/47,317,813.40
  6. Step 6: Final answer
    x = 66,424,097.80

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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.