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Finding the Fourth Proportional to 126,394.66, 174,409.77 and 69,802.66

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Solution

The fourth proportional to 126,394.66, 174,409.77 and 69,802.66 is: 96,319.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,394.66 : 174,409.77 = 69,802.66 : x
  2. Step 2: Convert to fraction form
    126,394.66/174,409.77 = 69,802.66/x
  3. Step 3: Cross multiply
    126,394.66x = 174,409.77 × 69,802.66
  4. Step 4: Simplify right side
    126,394.66x = 12,174,265,875.99
  5. Step 5: Solve for x
    x = 12,174,265,875.99/126,394.66
  6. Step 6: Final answer
    x = 96,319.46

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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.