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Finding the Fourth Proportional to 93,312,253.30, 139,968,379.96 and 87,340,285.30

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Solution

The fourth proportional to 93,312,253.30, 139,968,379.96 and 87,340,285.30 is: 131,010,427.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,253.30 : 139,968,379.96 = 87,340,285.30 : x
  2. Step 2: Convert to fraction form
    93,312,253.30/139,968,379.96 = 87,340,285.30/x
  3. Step 3: Cross multiply
    93,312,253.30x = 139,968,379.96 × 87,340,285.30
  4. Step 4: Simplify right side
    93,312,253.30x = 12,224,878,238,685,202
  5. Step 5: Solve for x
    x = 12,224,878,238,685,202/93,312,253.30
  6. Step 6: Final answer
    x = 131,010,427.96

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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.