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Finding the Fourth Proportional to 353,342.79, 530,017.35 and 100,623.06

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Solution

The fourth proportional to 353,342.79, 530,017.35 and 100,623.06 is: 150,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,342.79 : 530,017.35 = 100,623.06 : x
  2. Step 2: Convert to fraction form
    353,342.79/530,017.35 = 100,623.06/x
  3. Step 3: Cross multiply
    353,342.79x = 530,017.35 × 100,623.06
  4. Step 4: Simplify right side
    353,342.79x = 53,331,967,610.09
  5. Step 5: Solve for x
    x = 53,331,967,610.09/353,342.79
  6. Step 6: Final answer
    x = 150,935.49

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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.