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Finding the Fourth Proportional to 88,433,859.40, 122,038,978.74 and 51,271,361.80

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Solution

The fourth proportional to 88,433,859.40, 122,038,978.74 and 51,271,361.80 is: 70,754,625.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,433,859.40 : 122,038,978.74 = 51,271,361.80 : x
  2. Step 2: Convert to fraction form
    88,433,859.40/122,038,978.74 = 51,271,361.80/x
  3. Step 3: Cross multiply
    88,433,859.40x = 122,038,978.74 × 51,271,361.80
  4. Step 4: Simplify right side
    88,433,859.40x = 6,257,104,632,681,047
  5. Step 5: Solve for x
    x = 6,257,104,632,681,047/88,433,859.40
  6. Step 6: Final answer
    x = 70,754,625.83

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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.