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Finding the Fourth Proportional to 93,064.09, 128,429.81 and 57,232.93

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Solution

The fourth proportional to 93,064.09, 128,429.81 and 57,232.93 is: 78,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,064.09 : 128,429.81 = 57,232.93 : x
  2. Step 2: Convert to fraction form
    93,064.09/128,429.81 = 57,232.93/x
  3. Step 3: Cross multiply
    93,064.09x = 128,429.81 × 57,232.93
  4. Step 4: Simplify right side
    93,064.09x = 7,350,414,325.64
  5. Step 5: Solve for x
    x = 7,350,414,325.64/93,064.09
  6. Step 6: Final answer
    x = 78,982.28

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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.