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Finding the Fourth Proportional to 133,693.90, 184,581.47 and 86,030.08

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Solution

The fourth proportional to 133,693.90, 184,581.47 and 86,030.08 is: 118,775.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,693.90 : 184,581.47 = 86,030.08 : x
  2. Step 2: Convert to fraction form
    133,693.90/184,581.47 = 86,030.08/x
  3. Step 3: Cross multiply
    133,693.90x = 184,581.47 × 86,030.08
  4. Step 4: Simplify right side
    133,693.90x = 15,879,558,630.62
  5. Step 5: Solve for x
    x = 15,879,558,630.62/133,693.90
  6. Step 6: Final answer
    x = 118,775.49

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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.