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Finding the Fourth Proportional to 74,800.94, 112,222.51 and 30,459.51

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Solution

The fourth proportional to 74,800.94, 112,222.51 and 30,459.51 is: 45,697.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,800.94 : 112,222.51 = 30,459.51 : x
  2. Step 2: Convert to fraction form
    74,800.94/112,222.51 = 30,459.51/x
  3. Step 3: Cross multiply
    74,800.94x = 112,222.51 × 30,459.51
  4. Step 4: Simplify right side
    74,800.94x = 3,418,242,760.76
  5. Step 5: Solve for x
    x = 3,418,242,760.76/74,800.94
  6. Step 6: Final answer
    x = 45,697.86

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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.