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Finding the Fourth Proportional to 93,224.90, 128,606.28 and 63,020.81

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Solution

The fourth proportional to 93,224.90, 128,606.28 and 63,020.81 is: 86,938.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,224.90 : 128,606.28 = 63,020.81 : x
  2. Step 2: Convert to fraction form
    93,224.90/128,606.28 = 63,020.81/x
  3. Step 3: Cross multiply
    93,224.90x = 128,606.28 × 63,020.81
  4. Step 4: Simplify right side
    93,224.90x = 8,104,871,936.69
  5. Step 5: Solve for x
    x = 8,104,871,936.69/93,224.90
  6. Step 6: Final answer
    x = 86,938.92

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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.