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Finding the Fourth Proportional to 93,762.77, 129,390.21 and 51,318.56

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Solution

The fourth proportional to 93,762.77, 129,390.21 and 51,318.56 is: 70,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,762.77 : 129,390.21 = 51,318.56 : x
  2. Step 2: Convert to fraction form
    93,762.77/129,390.21 = 51,318.56/x
  3. Step 3: Cross multiply
    93,762.77x = 129,390.21 × 51,318.56
  4. Step 4: Simplify right side
    93,762.77x = 6,640,119,578.77
  5. Step 5: Solve for x
    x = 6,640,119,578.77/93,762.77
  6. Step 6: Final answer
    x = 70,818.30

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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.