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Finding the Fourth Proportional to 98,428,857.40, 147,643,286.10 and 98,428,857.40

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Solution

The fourth proportional to 98,428,857.40, 147,643,286.10 and 98,428,857.40 is: 147,643,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,428,857.40 : 147,643,286.10 = 98,428,857.40 : x
  2. Step 2: Convert to fraction form
    98,428,857.40/147,643,286.10 = 98,428,857.40/x
  3. Step 3: Cross multiply
    98,428,857.40x = 147,643,286.10 × 98,428,857.40
  4. Step 4: Simplify right side
    98,428,857.40x = 14,532,359,953,604,302
  5. Step 5: Solve for x
    x = 14,532,359,953,604,302/98,428,857.40
  6. Step 6: Final answer
    x = 147,643,286.10

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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.