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Finding the Fourth Proportional to 74,907.68, 103,196.67 and 52,205.40

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Solution

The fourth proportional to 74,907.68, 103,196.67 and 52,205.40 is: 71,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,907.68 : 103,196.67 = 52,205.40 : x
  2. Step 2: Convert to fraction form
    74,907.68/103,196.67 = 52,205.40/x
  3. Step 3: Cross multiply
    74,907.68x = 103,196.67 × 52,205.40
  4. Step 4: Simplify right side
    74,907.68x = 5,387,423,436.02
  5. Step 5: Solve for x
    x = 5,387,423,436.02/74,907.68
  6. Step 6: Final answer
    x = 71,920.85

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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.