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Finding the Fourth Proportional to 93,312,124.30, 139,968,186.45 and 54,953,893.90

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Solution

The fourth proportional to 93,312,124.30, 139,968,186.45 and 54,953,893.90 is: 82,430,840.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,124.30 : 139,968,186.45 = 54,953,893.90 : x
  2. Step 2: Convert to fraction form
    93,312,124.30/139,968,186.45 = 54,953,893.90/x
  3. Step 3: Cross multiply
    93,312,124.30x = 139,968,186.45 × 54,953,893.90
  4. Step 4: Simplify right side
    93,312,124.30x = 7,691,796,867,548,717
  5. Step 5: Solve for x
    x = 7,691,796,867,548,717/93,312,124.30
  6. Step 6: Final answer
    x = 82,430,840.85

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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.