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Finding the Fourth Proportional to 93,812.38, 129,483.87 and 57,980.81

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Solution

The fourth proportional to 93,812.38, 129,483.87 and 57,980.81 is: 80,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,812.38 : 129,483.87 = 57,980.81 : x
  2. Step 2: Convert to fraction form
    93,812.38/129,483.87 = 57,980.81/x
  3. Step 3: Cross multiply
    93,812.38x = 129,483.87 × 57,980.81
  4. Step 4: Simplify right side
    93,812.38x = 7,507,579,770.82
  5. Step 5: Solve for x
    x = 7,507,579,770.82/93,812.38
  6. Step 6: Final answer
    x = 80,027.60

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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.