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Finding the Fourth Proportional to 74,807.88, 112,149.72 and 30,455.52

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Solution

The fourth proportional to 74,807.88, 112,149.72 and 30,455.52 is: 45,658.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,807.88 : 112,149.72 = 30,455.52 : x
  2. Step 2: Convert to fraction form
    74,807.88/112,149.72 = 30,455.52/x
  3. Step 3: Cross multiply
    74,807.88x = 112,149.72 × 30,455.52
  4. Step 4: Simplify right side
    74,807.88x = 3,415,578,040.45
  5. Step 5: Solve for x
    x = 3,415,578,040.45/74,807.88
  6. Step 6: Final answer
    x = 45,658.00

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1.5x scale

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.