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Finding the Fourth Proportional to 92,199,978.46, 127,243,223.37 and 52,509,187.55

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Solution

The fourth proportional to 92,199,978.46, 127,243,223.37 and 52,509,187.55 is: 72,466,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,199,978.46 : 127,243,223.37 = 52,509,187.55 : x
  2. Step 2: Convert to fraction form
    92,199,978.46/127,243,223.37 = 52,509,187.55/x
  3. Step 3: Cross multiply
    92,199,978.46x = 127,243,223.37 × 52,509,187.55
  4. Step 4: Simplify right side
    92,199,978.46x = 6,681,438,280,214,495
  5. Step 5: Solve for x
    x = 6,681,438,280,214,495/92,199,978.46
  6. Step 6: Final answer
    x = 72,466,809.55

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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.