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Finding the Fourth Proportional to 93,041.64, 128,426.37 and 73,955.28

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Solution

The fourth proportional to 93,041.64, 128,426.37 and 73,955.28 is: 102,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,041.64 : 128,426.37 = 73,955.28 : x
  2. Step 2: Convert to fraction form
    93,041.64/128,426.37 = 73,955.28/x
  3. Step 3: Cross multiply
    93,041.64x = 128,426.37 × 73,955.28
  4. Step 4: Simplify right side
    93,041.64x = 9,497,807,393.80
  5. Step 5: Solve for x
    x = 9,497,807,393.80/93,041.64
  6. Step 6: Final answer
    x = 102,081.26

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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.