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Finding the Fourth Proportional to 127,802,912.60, 191,704,368.90 and 112,019,114.90

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Solution

The fourth proportional to 127,802,912.60, 191,704,368.90 and 112,019,114.90 is: 168,028,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,802,912.60 : 191,704,368.90 = 112,019,114.90 : x
  2. Step 2: Convert to fraction form
    127,802,912.60/191,704,368.90 = 112,019,114.90/x
  3. Step 3: Cross multiply
    127,802,912.60x = 191,704,368.90 × 112,019,114.90
  4. Step 4: Simplify right side
    127,802,912.60x = 21,474,553,726,641,088
  5. Step 5: Solve for x
    x = 21,474,553,726,641,088/127,802,912.60
  6. Step 6: Final answer
    x = 168,028,672.35

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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.