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Finding the Fourth Proportional to 125,133.59, 172,688.66 and 68,544.97

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Solution

The fourth proportional to 125,133.59, 172,688.66 and 68,544.97 is: 94,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,133.59 : 172,688.66 = 68,544.97 : x
  2. Step 2: Convert to fraction form
    125,133.59/172,688.66 = 68,544.97/x
  3. Step 3: Cross multiply
    125,133.59x = 172,688.66 × 68,544.97
  4. Step 4: Simplify right side
    125,133.59x = 11,836,938,501.64
  5. Step 5: Solve for x
    x = 11,836,938,501.64/125,133.59
  6. Step 6: Final answer
    x = 94,594.41

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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.