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Finding the Fourth Proportional to 93,066.81, 128,431.62 and 50,625.51

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Solution

The fourth proportional to 93,066.81, 128,431.62 and 50,625.51 is: 69,862.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,066.81 : 128,431.62 = 50,625.51 : x
  2. Step 2: Convert to fraction form
    93,066.81/128,431.62 = 50,625.51/x
  3. Step 3: Cross multiply
    93,066.81x = 128,431.62 × 50,625.51
  4. Step 4: Simplify right side
    93,066.81x = 6,501,916,262.63
  5. Step 5: Solve for x
    x = 6,501,916,262.63/93,066.81
  6. Step 6: Final answer
    x = 69,862.89

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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.