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Finding the Fourth Proportional to 100,602,015.20, 150,903,022.80 and 83,595,903.20

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Solution

The fourth proportional to 100,602,015.20, 150,903,022.80 and 83,595,903.20 is: 125,393,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,015.20 : 150,903,022.80 = 83,595,903.20 : x
  2. Step 2: Convert to fraction form
    100,602,015.20/150,903,022.80 = 83,595,903.20/x
  3. Step 3: Cross multiply
    100,602,015.20x = 150,903,022.80 × 83,595,903.20
  4. Step 4: Simplify right side
    100,602,015.20x = 12,614,874,486,576,194
  5. Step 5: Solve for x
    x = 12,614,874,486,576,194/100,602,015.20
  6. Step 6: Final answer
    x = 125,393,854.80

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1.5x scale

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.