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Finding the Fourth Proportional to 121,468.49, 167,619.28 and 70,477.27

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Solution

The fourth proportional to 121,468.49, 167,619.28 and 70,477.27 is: 97,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,468.49 : 167,619.28 = 70,477.27 : x
  2. Step 2: Convert to fraction form
    121,468.49/167,619.28 = 70,477.27/x
  3. Step 3: Cross multiply
    121,468.49x = 167,619.28 × 70,477.27
  4. Step 4: Simplify right side
    121,468.49x = 11,813,349,253.77
  5. Step 5: Solve for x
    x = 11,813,349,253.77/121,468.49
  6. Step 6: Final answer
    x = 97,254.43

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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.