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Finding the Fourth Proportional to 112,071.01, 154,658.05 and 63,673.02

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Solution

The fourth proportional to 112,071.01, 154,658.05 and 63,673.02 is: 87,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,071.01 : 154,658.05 = 63,673.02 : x
  2. Step 2: Convert to fraction form
    112,071.01/154,658.05 = 63,673.02/x
  3. Step 3: Cross multiply
    112,071.01x = 154,658.05 × 63,673.02
  4. Step 4: Simplify right side
    112,071.01x = 9,847,545,110.81
  5. Step 5: Solve for x
    x = 9,847,545,110.81/112,071.01
  6. Step 6: Final answer
    x = 87,868.80

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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.