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Finding the Fourth Proportional to 98,833.77, 136,390.40 and 53,511.80

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Solution

The fourth proportional to 98,833.77, 136,390.40 and 53,511.80 is: 73,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,833.77 : 136,390.40 = 53,511.80 : x
  2. Step 2: Convert to fraction form
    98,833.77/136,390.40 = 53,511.80/x
  3. Step 3: Cross multiply
    98,833.77x = 136,390.40 × 53,511.80
  4. Step 4: Simplify right side
    98,833.77x = 7,298,494,857.21
  5. Step 5: Solve for x
    x = 7,298,494,857.21/98,833.77
  6. Step 6: Final answer
    x = 73,846.16

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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.