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Finding the Fourth Proportional to 79,259,804.60, 118,889,706.90 and 57,648,745.40

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Solution

The fourth proportional to 79,259,804.60, 118,889,706.90 and 57,648,745.40 is: 86,473,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259,804.60 : 118,889,706.90 = 57,648,745.40 : x
  2. Step 2: Convert to fraction form
    79,259,804.60/118,889,706.90 = 57,648,745.40/x
  3. Step 3: Cross multiply
    79,259,804.60x = 118,889,706.90 × 57,648,745.40
  4. Step 4: Simplify right side
    79,259,804.60x = 6,853,842,443,758,723
  5. Step 5: Solve for x
    x = 6,853,842,443,758,723/79,259,804.60
  6. Step 6: Final answer
    x = 86,473,118.10

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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.