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Finding the Fourth Proportional to 207,657,292.60, 311,485,938.90 and 207,657,292.60

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Solution

The fourth proportional to 207,657,292.60, 311,485,938.90 and 207,657,292.60 is: 311,485,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,657,292.60 : 311,485,938.90 = 207,657,292.60 : x
  2. Step 2: Convert to fraction form
    207,657,292.60/311,485,938.90 = 207,657,292.60/x
  3. Step 3: Cross multiply
    207,657,292.60x = 311,485,938.90 × 207,657,292.60
  4. Step 4: Simplify right side
    207,657,292.60x = 64,682,326,754,943,016
  5. Step 5: Solve for x
    x = 64,682,326,754,943,016/207,657,292.60
  6. Step 6: Final answer
    x = 311,485,938.90

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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.