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Finding the Fourth Proportional to 74,952.65, 112,373.37 and 45,363.45

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Solution

The fourth proportional to 74,952.65, 112,373.37 and 45,363.45 is: 68,011.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,952.65 : 112,373.37 = 45,363.45 : x
  2. Step 2: Convert to fraction form
    74,952.65/112,373.37 = 45,363.45/x
  3. Step 3: Cross multiply
    74,952.65x = 112,373.37 × 45,363.45
  4. Step 4: Simplify right side
    74,952.65x = 5,097,643,524.51
  5. Step 5: Solve for x
    x = 5,097,643,524.51/74,952.65
  6. Step 6: Final answer
    x = 68,011.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.