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Finding the Fourth Proportional to 100,602,034.40, 150,903,051.60 and 73,179,678.80

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Solution

The fourth proportional to 100,602,034.40, 150,903,051.60 and 73,179,678.80 is: 109,769,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,034.40 : 150,903,051.60 = 73,179,678.80 : x
  2. Step 2: Convert to fraction form
    100,602,034.40/150,903,051.60 = 73,179,678.80/x
  3. Step 3: Cross multiply
    100,602,034.40x = 150,903,051.60 × 73,179,678.80
  4. Step 4: Simplify right side
    100,602,034.40x = 11,043,036,846,027,826
  5. Step 5: Solve for x
    x = 11,043,036,846,027,826/100,602,034.40
  6. Step 6: Final answer
    x = 109,769,518.20

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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.