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Finding the Fourth Proportional to 61,210.68, 91,729.80 and 48,675.08

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Solution

The fourth proportional to 61,210.68, 91,729.80 and 48,675.08 is: 72,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,210.68 : 91,729.80 = 48,675.08 : x
  2. Step 2: Convert to fraction form
    61,210.68/91,729.80 = 48,675.08/x
  3. Step 3: Cross multiply
    61,210.68x = 91,729.80 × 48,675.08
  4. Step 4: Simplify right side
    61,210.68x = 4,464,954,894.74
  5. Step 5: Solve for x
    x = 4,464,954,894.74/61,210.68
  6. Step 6: Final answer
    x = 72,944.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.