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Finding the Fourth Proportional to 100,205,719.45, 150,308,579.18 and 100,205,719.45

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Solution

The fourth proportional to 100,205,719.45, 150,308,579.18 and 100,205,719.45 is: 150,308,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,205,719.45 : 150,308,579.18 = 100,205,719.45 : x
  2. Step 2: Convert to fraction form
    100,205,719.45/150,308,579.18 = 100,205,719.45/x
  3. Step 3: Cross multiply
    100,205,719.45x = 150,308,579.18 × 100,205,719.45
  4. Step 4: Simplify right side
    100,205,719.45x = 15,061,779,316,239,192
  5. Step 5: Solve for x
    x = 15,061,779,316,239,192/100,205,719.45
  6. Step 6: Final answer
    x = 150,308,579.18

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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.