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Finding the Fourth Proportional to 75,076.12, 103,602 and 44,878.12

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Solution

The fourth proportional to 75,076.12, 103,602 and 44,878.12 is: 61,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,076.12 : 103,602 = 44,878.12 : x
  2. Step 2: Convert to fraction form
    75,076.12/103,602 = 44,878.12/x
  3. Step 3: Cross multiply
    75,076.12x = 103,602 × 44,878.12
  4. Step 4: Simplify right side
    75,076.12x = 4,649,462,988.24
  5. Step 5: Solve for x
    x = 4,649,462,988.24/75,076.12
  6. Step 6: Final answer
    x = 61,929.99

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1.5x scale

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.