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Finding the Fourth Proportional to 93,846.81, 129,508.61 and 51,406.86

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Solution

The fourth proportional to 93,846.81, 129,508.61 and 51,406.86 is: 70,941.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,846.81 : 129,508.61 = 51,406.86 : x
  2. Step 2: Convert to fraction form
    93,846.81/129,508.61 = 51,406.86/x
  3. Step 3: Cross multiply
    93,846.81x = 129,508.61 × 51,406.86
  4. Step 4: Simplify right side
    93,846.81x = 6,657,630,983.06
  5. Step 5: Solve for x
    x = 6,657,630,983.06/93,846.81
  6. Step 6: Final answer
    x = 70,941.47

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1.5x scale

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.