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Finding the Fourth Proportional to 343,363.40, 515,093.70 and 106,681.40

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Solution

The fourth proportional to 343,363.40, 515,093.70 and 106,681.40 is: 160,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,363.40 : 515,093.70 = 106,681.40 : x
  2. Step 2: Convert to fraction form
    343,363.40/515,093.70 = 106,681.40/x
  3. Step 3: Cross multiply
    343,363.40x = 515,093.70 × 106,681.40
  4. Step 4: Simplify right side
    343,363.40x = 54,950,917,047.18
  5. Step 5: Solve for x
    x = 54,950,917,047.18/343,363.40
  6. Step 6: Final answer
    x = 160,037.20

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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.