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Finding the Fourth Proportional to 74,681.71, 112,041.66 and 24,775.72

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Solution

The fourth proportional to 74,681.71, 112,041.66 and 24,775.72 is: 37,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,681.71 : 112,041.66 = 24,775.72 : x
  2. Step 2: Convert to fraction form
    74,681.71/112,041.66 = 24,775.72/x
  3. Step 3: Cross multiply
    74,681.71x = 112,041.66 × 24,775.72
  4. Step 4: Simplify right side
    74,681.71x = 2,775,912,796.50
  5. Step 5: Solve for x
    x = 2,775,912,796.50/74,681.71
  6. Step 6: Final answer
    x = 37,169.91

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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.