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Finding the Fourth Proportional to 313,956,872, 470,939,501.28 and 98,546,120

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Solution

The fourth proportional to 313,956,872, 470,939,501.28 and 98,546,120 is: 147,820,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,956,872 : 470,939,501.28 = 98,546,120 : x
  2. Step 2: Convert to fraction form
    313,956,872/470,939,501.28 = 98,546,120/x
  3. Step 3: Cross multiply
    313,956,872x = 470,939,501.28 × 98,546,120
  4. Step 4: Simplify right side
    313,956,872x = 46,409,260,605,879,032
  5. Step 5: Solve for x
    x = 46,409,260,605,879,032/313,956,872
  6. Step 6: Final answer
    x = 147,820,496.20

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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.