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Finding the Fourth Proportional to 125,547.42, 173,258.43 and 68,959.98

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Solution

The fourth proportional to 125,547.42, 173,258.43 and 68,959.98 is: 95,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,547.42 : 173,258.43 = 68,959.98 : x
  2. Step 2: Convert to fraction form
    125,547.42/173,258.43 = 68,959.98/x
  3. Step 3: Cross multiply
    125,547.42x = 173,258.43 × 68,959.98
  4. Step 4: Simplify right side
    125,547.42x = 11,947,897,867.63
  5. Step 5: Solve for x
    x = 11,947,897,867.63/125,547.42
  6. Step 6: Final answer
    x = 95,166.41

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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.