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Finding the Fourth Proportional to 93,119.13, 139,700.58 and 30,789.63

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Solution

The fourth proportional to 93,119.13, 139,700.58 and 30,789.63 is: 46,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,119.13 : 139,700.58 = 30,789.63 : x
  2. Step 2: Convert to fraction form
    93,119.13/139,700.58 = 30,789.63/x
  3. Step 3: Cross multiply
    93,119.13x = 139,700.58 × 30,789.63
  4. Step 4: Simplify right side
    93,119.13x = 4,301,329,168.99
  5. Step 5: Solve for x
    x = 4,301,329,168.99/93,119.13
  6. Step 6: Final answer
    x = 46,191.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.