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Finding the Fourth Proportional to 58,938,693.90, 88,408,040.85 and 30,240,879.90

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Solution

The fourth proportional to 58,938,693.90, 88,408,040.85 and 30,240,879.90 is: 45,361,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,938,693.90 : 88,408,040.85 = 30,240,879.90 : x
  2. Step 2: Convert to fraction form
    58,938,693.90/88,408,040.85 = 30,240,879.90/x
  3. Step 3: Cross multiply
    58,938,693.90x = 88,408,040.85 × 30,240,879.90
  4. Step 4: Simplify right side
    58,938,693.90x = 2,673,536,945,539,143.50
  5. Step 5: Solve for x
    x = 2,673,536,945,539,143.50/58,938,693.90
  6. Step 6: Final answer
    x = 45,361,319.85

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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.