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Finding the Fourth Proportional to 105,526.54, 158,252.43 and 38,948.79

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Solution

The fourth proportional to 105,526.54, 158,252.43 and 38,948.79 is: 58,409.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,526.54 : 158,252.43 = 38,948.79 : x
  2. Step 2: Convert to fraction form
    105,526.54/158,252.43 = 38,948.79/x
  3. Step 3: Cross multiply
    105,526.54x = 158,252.43 × 38,948.79
  4. Step 4: Simplify right side
    105,526.54x = 6,163,740,663.06
  5. Step 5: Solve for x
    x = 6,163,740,663.06/105,526.54
  6. Step 6: Final answer
    x = 58,409.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.