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Finding the Fourth Proportional to 74,336.74, 102,559.57 and 42,482.95

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Solution

The fourth proportional to 74,336.74, 102,559.57 and 42,482.95 is: 58,612.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,336.74 : 102,559.57 = 42,482.95 : x
  2. Step 2: Convert to fraction form
    74,336.74/102,559.57 = 42,482.95/x
  3. Step 3: Cross multiply
    74,336.74x = 102,559.57 × 42,482.95
  4. Step 4: Simplify right side
    74,336.74x = 4,357,033,084.33
  5. Step 5: Solve for x
    x = 4,357,033,084.33/74,336.74
  6. Step 6: Final answer
    x = 58,612.11

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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.