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Finding the Fourth Proportional to 93,752.48, 129,381.72 and 51,311

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Solution

The fourth proportional to 93,752.48, 129,381.72 and 51,311 is: 70,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,752.48 : 129,381.72 = 51,311 : x
  2. Step 2: Convert to fraction form
    93,752.48/129,381.72 = 51,311/x
  3. Step 3: Cross multiply
    93,752.48x = 129,381.72 × 51,311
  4. Step 4: Simplify right side
    93,752.48x = 6,638,705,434.92
  5. Step 5: Solve for x
    x = 6,638,705,434.92/93,752.48
  6. Step 6: Final answer
    x = 70,810.98

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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.