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Finding the Fourth Proportional to 93,765.99, 129,397.15 and 53,478.71

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Solution

The fourth proportional to 93,765.99, 129,397.15 and 53,478.71 is: 73,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,765.99 : 129,397.15 = 53,478.71 : x
  2. Step 2: Convert to fraction form
    93,765.99/129,397.15 = 53,478.71/x
  3. Step 3: Cross multiply
    93,765.99x = 129,397.15 × 53,478.71
  4. Step 4: Simplify right side
    93,765.99x = 6,919,992,991.82
  5. Step 5: Solve for x
    x = 6,919,992,991.82/93,765.99
  6. Step 6: Final answer
    x = 73,800.67

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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.