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Finding the Fourth Proportional to 147,771.58, 203,925.01 and 84,109.38

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Solution

The fourth proportional to 147,771.58, 203,925.01 and 84,109.38 is: 116,071.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,771.58 : 203,925.01 = 84,109.38 : x
  2. Step 2: Convert to fraction form
    147,771.58/203,925.01 = 84,109.38/x
  3. Step 3: Cross multiply
    147,771.58x = 203,925.01 × 84,109.38
  4. Step 4: Simplify right side
    147,771.58x = 17,152,006,157.59
  5. Step 5: Solve for x
    x = 17,152,006,157.59/147,771.58
  6. Step 6: Final answer
    x = 116,071.08

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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.