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Finding the Fourth Proportional to 220,411.98, 330,649.10 and 70,617.23

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Solution

The fourth proportional to 220,411.98, 330,649.10 and 70,617.23 is: 105,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,411.98 : 330,649.10 = 70,617.23 : x
  2. Step 2: Convert to fraction form
    220,411.98/330,649.10 = 70,617.23/x
  3. Step 3: Cross multiply
    220,411.98x = 330,649.10 × 70,617.23
  4. Step 4: Simplify right side
    220,411.98x = 23,349,523,543.99
  5. Step 5: Solve for x
    x = 23,349,523,543.99/220,411.98
  6. Step 6: Final answer
    x = 105,935.82

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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.