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Finding the Fourth Proportional to 126,798.84, 174,982.40 and 70,210.22

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Solution

The fourth proportional to 126,798.84, 174,982.40 and 70,210.22 is: 96,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,798.84 : 174,982.40 = 70,210.22 : x
  2. Step 2: Convert to fraction form
    126,798.84/174,982.40 = 70,210.22/x
  3. Step 3: Cross multiply
    126,798.84x = 174,982.40 × 70,210.22
  4. Step 4: Simplify right side
    126,798.84x = 12,285,552,800.13
  5. Step 5: Solve for x
    x = 12,285,552,800.13/126,798.84
  6. Step 6: Final answer
    x = 96,890.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.