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Finding the Fourth Proportional to 89,281.48, 123,210.30 and 48,992.89

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Solution

The fourth proportional to 89,281.48, 123,210.30 and 48,992.89 is: 67,611.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,281.48 : 123,210.30 = 48,992.89 : x
  2. Step 2: Convert to fraction form
    89,281.48/123,210.30 = 48,992.89/x
  3. Step 3: Cross multiply
    89,281.48x = 123,210.30 × 48,992.89
  4. Step 4: Simplify right side
    89,281.48x = 6,036,428,674.77
  5. Step 5: Solve for x
    x = 6,036,428,674.77/89,281.48
  6. Step 6: Final answer
    x = 67,611.21

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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.