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Finding the Fourth Proportional to 103,984.62, 143,486.64 and 58,663.32

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Solution

The fourth proportional to 103,984.62, 143,486.64 and 58,663.32 is: 80,948.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,984.62 : 143,486.64 = 58,663.32 : x
  2. Step 2: Convert to fraction form
    103,984.62/143,486.64 = 58,663.32/x
  3. Step 3: Cross multiply
    103,984.62x = 143,486.64 × 58,663.32
  4. Step 4: Simplify right side
    103,984.62x = 8,417,402,678.04
  5. Step 5: Solve for x
    x = 8,417,402,678.04/103,984.62
  6. Step 6: Final answer
    x = 80,948.54

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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.