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Finding the Fourth Proportional to 105,461.79, 158,192.68 and 35,390.31

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Solution

The fourth proportional to 105,461.79, 158,192.68 and 35,390.31 is: 53,085.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.79 : 158,192.68 = 35,390.31 : x
  2. Step 2: Convert to fraction form
    105,461.79/158,192.68 = 35,390.31/x
  3. Step 3: Cross multiply
    105,461.79x = 158,192.68 × 35,390.31
  4. Step 4: Simplify right side
    105,461.79x = 5,598,487,984.93
  5. Step 5: Solve for x
    x = 5,598,487,984.93/105,461.79
  6. Step 6: Final answer
    x = 53,085.46

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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.