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Finding the Fourth Proportional to 93,710.64, 129,399.48 and 66,935.28

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Solution

The fourth proportional to 93,710.64, 129,399.48 and 66,935.28 is: 92,426.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,710.64 : 129,399.48 = 66,935.28 : x
  2. Step 2: Convert to fraction form
    93,710.64/129,399.48 = 66,935.28/x
  3. Step 3: Cross multiply
    93,710.64x = 129,399.48 × 66,935.28
  4. Step 4: Simplify right side
    93,710.64x = 8,661,390,425.65
  5. Step 5: Solve for x
    x = 8,661,390,425.65/93,710.64
  6. Step 6: Final answer
    x = 92,426.97

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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.