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Finding the Fourth Proportional to 74,860.84, 103,300.14 and 43,034.32

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Solution

The fourth proportional to 74,860.84, 103,300.14 and 43,034.32 is: 59,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,860.84 : 103,300.14 = 43,034.32 : x
  2. Step 2: Convert to fraction form
    74,860.84/103,300.14 = 43,034.32/x
  3. Step 3: Cross multiply
    74,860.84x = 103,300.14 × 43,034.32
  4. Step 4: Simplify right side
    74,860.84x = 4,445,451,280.80
  5. Step 5: Solve for x
    x = 4,445,451,280.80/74,860.84
  6. Step 6: Final answer
    x = 59,382.87

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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.