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Finding the Fourth Proportional to 109,312.34, 163,859.15 and 94,258.49

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Solution

The fourth proportional to 109,312.34, 163,859.15 and 94,258.49 is: 141,293.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,312.34 : 163,859.15 = 94,258.49 : x
  2. Step 2: Convert to fraction form
    109,312.34/163,859.15 = 94,258.49/x
  3. Step 3: Cross multiply
    109,312.34x = 163,859.15 × 94,258.49
  4. Step 4: Simplify right side
    109,312.34x = 15,445,115,468.03
  5. Step 5: Solve for x
    x = 15,445,115,468.03/109,312.34
  6. Step 6: Final answer
    x = 141,293.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.