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Finding the Fourth Proportional to 93,776.64, 129,411.98 and 51,337.90

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Solution

The fourth proportional to 93,776.64, 129,411.98 and 51,337.90 is: 70,846.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,776.64 : 129,411.98 = 51,337.90 : x
  2. Step 2: Convert to fraction form
    93,776.64/129,411.98 = 51,337.90/x
  3. Step 3: Cross multiply
    93,776.64x = 129,411.98 × 51,337.90
  4. Step 4: Simplify right side
    93,776.64x = 6,643,739,288.04
  5. Step 5: Solve for x
    x = 6,643,739,288.04/93,776.64
  6. Step 6: Final answer
    x = 70,846.42

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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.