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Finding the Fourth Proportional to 98,185.92, 135,490.16 and 57,897.76

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Solution

The fourth proportional to 98,185.92, 135,490.16 and 57,897.76 is: 79,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,185.92 : 135,490.16 = 57,897.76 : x
  2. Step 2: Convert to fraction form
    98,185.92/135,490.16 = 57,897.76/x
  3. Step 3: Cross multiply
    98,185.92x = 135,490.16 × 57,897.76
  4. Step 4: Simplify right side
    98,185.92x = 7,844,576,766.04
  5. Step 5: Solve for x
    x = 7,844,576,766.04/98,185.92
  6. Step 6: Final answer
    x = 79,895.13

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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.