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Finding the Fourth Proportional to 76,978,658.56, 106,230,539.84 and 46,038,823.04

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Solution

The fourth proportional to 76,978,658.56, 106,230,539.84 and 46,038,823.04 is: 63,533,570.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,978,658.56 : 106,230,539.84 = 46,038,823.04 : x
  2. Step 2: Convert to fraction form
    76,978,658.56/106,230,539.84 = 46,038,823.04/x
  3. Step 3: Cross multiply
    76,978,658.56x = 106,230,539.84 × 46,038,823.04
  4. Step 4: Simplify right side
    76,978,658.56x = 4,890,729,025,137,430
  5. Step 5: Solve for x
    x = 4,890,729,025,137,430/76,978,658.56
  6. Step 6: Final answer
    x = 63,533,570.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.