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Finding the Fourth Proportional to 232,143.80, 348,215.70 and 65,910.20

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Solution

The fourth proportional to 232,143.80, 348,215.70 and 65,910.20 is: 98,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,143.80 : 348,215.70 = 65,910.20 : x
  2. Step 2: Convert to fraction form
    232,143.80/348,215.70 = 65,910.20/x
  3. Step 3: Cross multiply
    232,143.80x = 348,215.70 × 65,910.20
  4. Step 4: Simplify right side
    232,143.80x = 22,950,966,430.14
  5. Step 5: Solve for x
    x = 22,950,966,430.14/232,143.80
  6. Step 6: Final answer
    x = 98,865.30

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1.5x scale

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.