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Finding the Fourth Proportional to 107,804,611.60, 161,706,917.40 and 31,130,141.20

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Solution

The fourth proportional to 107,804,611.60, 161,706,917.40 and 31,130,141.20 is: 46,695,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,804,611.60 : 161,706,917.40 = 31,130,141.20 : x
  2. Step 2: Convert to fraction form
    107,804,611.60/161,706,917.40 = 31,130,141.20/x
  3. Step 3: Cross multiply
    107,804,611.60x = 161,706,917.40 × 31,130,141.20
  4. Step 4: Simplify right side
    107,804,611.60x = 5,033,959,171,678,737
  5. Step 5: Solve for x
    x = 5,033,959,171,678,737/107,804,611.60
  6. Step 6: Final answer
    x = 46,695,211.80

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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.