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Finding the Fourth Proportional to 57,938,675.80, 86,908,013.70 and 29,173,696.60

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Solution

The fourth proportional to 57,938,675.80, 86,908,013.70 and 29,173,696.60 is: 43,760,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,938,675.80 : 86,908,013.70 = 29,173,696.60 : x
  2. Step 2: Convert to fraction form
    57,938,675.80/86,908,013.70 = 29,173,696.60/x
  3. Step 3: Cross multiply
    57,938,675.80x = 86,908,013.70 × 29,173,696.60
  4. Step 4: Simplify right side
    57,938,675.80x = 2,535,428,023,792,443.50
  5. Step 5: Solve for x
    x = 2,535,428,023,792,443.50/57,938,675.80
  6. Step 6: Final answer
    x = 43,760,544.90

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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.