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Finding the Fourth Proportional to 93,812.70, 129,461.31 and 51,370.86

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Solution

The fourth proportional to 93,812.70, 129,461.31 and 51,370.86 is: 70,891.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,812.70 : 129,461.31 = 51,370.86 : x
  2. Step 2: Convert to fraction form
    93,812.70/129,461.31 = 51,370.86/x
  3. Step 3: Cross multiply
    93,812.70x = 129,461.31 × 51,370.86
  4. Step 4: Simplify right side
    93,812.70x = 6,650,538,831.43
  5. Step 5: Solve for x
    x = 6,650,538,831.43/93,812.70
  6. Step 6: Final answer
    x = 70,891.67

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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.