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Finding the Fourth Proportional to 93,911.76, 140,867.64 and 56,898

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Solution

The fourth proportional to 93,911.76, 140,867.64 and 56,898 is: 85,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,911.76 : 140,867.64 = 56,898 : x
  2. Step 2: Convert to fraction form
    93,911.76/140,867.64 = 56,898/x
  3. Step 3: Cross multiply
    93,911.76x = 140,867.64 × 56,898
  4. Step 4: Simplify right side
    93,911.76x = 8,015,086,980.72
  5. Step 5: Solve for x
    x = 8,015,086,980.72/93,911.76
  6. Step 6: Final answer
    x = 85,347.00

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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.