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Finding the Fourth Proportional to 100,908,000.10, 151,362,000.15 and 49,889,664.10

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Solution

The fourth proportional to 100,908,000.10, 151,362,000.15 and 49,889,664.10 is: 74,834,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,908,000.10 : 151,362,000.15 = 49,889,664.10 : x
  2. Step 2: Convert to fraction form
    100,908,000.10/151,362,000.15 = 49,889,664.10/x
  3. Step 3: Cross multiply
    100,908,000.10x = 151,362,000.15 × 49,889,664.10
  4. Step 4: Simplify right side
    100,908,000.10x = 7,551,399,344,987,650
  5. Step 5: Solve for x
    x = 7,551,399,344,987,650/100,908,000.10
  6. Step 6: Final answer
    x = 74,834,496.15

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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.