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Finding the Fourth Proportional to 195,555.76, 293,417.92 and 105,580.60

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Solution

The fourth proportional to 195,555.76, 293,417.92 and 105,580.60 is: 158,416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,555.76 : 293,417.92 = 105,580.60 : x
  2. Step 2: Convert to fraction form
    195,555.76/293,417.92 = 105,580.60/x
  3. Step 3: Cross multiply
    195,555.76x = 293,417.92 × 105,580.60
  4. Step 4: Simplify right side
    195,555.76x = 30,979,240,044.35
  5. Step 5: Solve for x
    x = 30,979,240,044.35/195,555.76
  6. Step 6: Final answer
    x = 158,416.40

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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.