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Finding the Fourth Proportional to 65,731,440.80, 98,373,212.40 and 65,731,440.80

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Solution

The fourth proportional to 65,731,440.80, 98,373,212.40 and 65,731,440.80 is: 98,373,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,731,440.80 : 98,373,212.40 = 65,731,440.80 : x
  2. Step 2: Convert to fraction form
    65,731,440.80/98,373,212.40 = 65,731,440.80/x
  3. Step 3: Cross multiply
    65,731,440.80x = 98,373,212.40 × 65,731,440.80
  4. Step 4: Simplify right side
    65,731,440.80x = 6,466,212,987,176,426
  5. Step 5: Solve for x
    x = 6,466,212,987,176,426/65,731,440.80
  6. Step 6: Final answer
    x = 98,373,212.40

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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.