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Finding the Fourth Proportional to 77,886.12, 107,482.72 and 44,352.12

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Solution

The fourth proportional to 77,886.12, 107,482.72 and 44,352.12 is: 61,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,886.12 : 107,482.72 = 44,352.12 : x
  2. Step 2: Convert to fraction form
    77,886.12/107,482.72 = 44,352.12/x
  3. Step 3: Cross multiply
    77,886.12x = 107,482.72 × 44,352.12
  4. Step 4: Simplify right side
    77,886.12x = 4,767,086,495.37
  5. Step 5: Solve for x
    x = 4,767,086,495.37/77,886.12
  6. Step 6: Final answer
    x = 61,205.85

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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.