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Finding the Fourth Proportional to 98,428,846.40, 147,643,269.60 and 98,428,846.40

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Solution

The fourth proportional to 98,428,846.40, 147,643,269.60 and 98,428,846.40 is: 147,643,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,428,846.40 : 147,643,269.60 = 98,428,846.40 : x
  2. Step 2: Convert to fraction form
    98,428,846.40/147,643,269.60 = 98,428,846.40/x
  3. Step 3: Cross multiply
    98,428,846.40x = 147,643,269.60 × 98,428,846.40
  4. Step 4: Simplify right side
    98,428,846.40x = 14,532,356,705,452,190
  5. Step 5: Solve for x
    x = 14,532,356,705,452,190/98,428,846.40
  6. Step 6: Final answer
    x = 147,643,269.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.