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Finding the Fourth Proportional to 93,312.86, 128,773.76 and 50,871.69

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Solution

The fourth proportional to 93,312.86, 128,773.76 and 50,871.69 is: 70,204.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312.86 : 128,773.76 = 50,871.69 : x
  2. Step 2: Convert to fraction form
    93,312.86/128,773.76 = 50,871.69/x
  3. Step 3: Cross multiply
    93,312.86x = 128,773.76 × 50,871.69
  4. Step 4: Simplify right side
    93,312.86x = 6,550,938,544.50
  5. Step 5: Solve for x
    x = 6,550,938,544.50/93,312.86
  6. Step 6: Final answer
    x = 70,204.03

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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.