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Finding the Fourth Proportional to 93,791.05, 129,448.01 and 55,572.12

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Solution

The fourth proportional to 93,791.05, 129,448.01 and 55,572.12 is: 76,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,791.05 : 129,448.01 = 55,572.12 : x
  2. Step 2: Convert to fraction form
    93,791.05/129,448.01 = 55,572.12/x
  3. Step 3: Cross multiply
    93,791.05x = 129,448.01 × 55,572.12
  4. Step 4: Simplify right side
    93,791.05x = 7,193,700,345.48
  5. Step 5: Solve for x
    x = 7,193,700,345.48/93,791.05
  6. Step 6: Final answer
    x = 76,699.22

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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.