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Finding the Fourth Proportional to 75,010.80, 103,528.76 and 48,186.84

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Solution

The fourth proportional to 75,010.80, 103,528.76 and 48,186.84 is: 66,506.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,010.80 : 103,528.76 = 48,186.84 : x
  2. Step 2: Convert to fraction form
    75,010.80/103,528.76 = 48,186.84/x
  3. Step 3: Cross multiply
    75,010.80x = 103,528.76 × 48,186.84
  4. Step 4: Simplify right side
    75,010.80x = 4,988,723,552.58
  5. Step 5: Solve for x
    x = 4,988,723,552.58/75,010.80
  6. Step 6: Final answer
    x = 66,506.74

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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.