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Finding the Fourth Proportional to 68,374,464.30, 102,561,696.45 and 61,656,000.30

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Solution

The fourth proportional to 68,374,464.30, 102,561,696.45 and 61,656,000.30 is: 92,484,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,374,464.30 : 102,561,696.45 = 61,656,000.30 : x
  2. Step 2: Convert to fraction form
    68,374,464.30/102,561,696.45 = 61,656,000.30/x
  3. Step 3: Cross multiply
    68,374,464.30x = 102,561,696.45 × 61,656,000.30
  4. Step 4: Simplify right side
    68,374,464.30x = 6,323,543,987,089,709
  5. Step 5: Solve for x
    x = 6,323,543,987,089,709/68,374,464.30
  6. Step 6: Final answer
    x = 92,484,000.45

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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.