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Finding the Fourth Proportional to 89,307.52, 123,243.80 and 49,020.24

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Solution

The fourth proportional to 89,307.52, 123,243.80 and 49,020.24 is: 67,647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,307.52 : 123,243.80 = 49,020.24 : x
  2. Step 2: Convert to fraction form
    89,307.52/123,243.80 = 49,020.24/x
  3. Step 3: Cross multiply
    89,307.52x = 123,243.80 × 49,020.24
  4. Step 4: Simplify right side
    89,307.52x = 6,041,440,654.51
  5. Step 5: Solve for x
    x = 6,041,440,654.51/89,307.52
  6. Step 6: Final answer
    x = 67,647.61

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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.