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Finding the Fourth Proportional to 147,744,019.40, 207,181,749.40 and 147,744,019.40

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Solution

The fourth proportional to 147,744,019.40, 207,181,749.40 and 147,744,019.40 is: 207,181,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,744,019.40 : 207,181,749.40 = 147,744,019.40 : x
  2. Step 2: Convert to fraction form
    147,744,019.40/207,181,749.40 = 147,744,019.40/x
  3. Step 3: Cross multiply
    147,744,019.40x = 207,181,749.40 × 147,744,019.40
  4. Step 4: Simplify right side
    147,744,019.40x = 30,609,864,402,679,540
  5. Step 5: Solve for x
    x = 30,609,864,402,679,540/147,744,019.40
  6. Step 6: Final answer
    x = 207,181,749.40

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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.