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Finding the Fourth Proportional to 92,574.04, 127,716 and 53,805.42

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Solution

The fourth proportional to 92,574.04, 127,716 and 53,805.42 is: 74,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,574.04 : 127,716 = 53,805.42 : x
  2. Step 2: Convert to fraction form
    92,574.04/127,716 = 53,805.42/x
  3. Step 3: Cross multiply
    92,574.04x = 127,716 × 53,805.42
  4. Step 4: Simplify right side
    92,574.04x = 6,871,812,382.14
  5. Step 5: Solve for x
    x = 6,871,812,382.14/92,574.04
  6. Step 6: Final answer
    x = 74,230.45

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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.