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Finding the Fourth Proportional to 163,902.30, 245,853.45 and 144,656.70

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Solution

The fourth proportional to 163,902.30, 245,853.45 and 144,656.70 is: 216,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,902.30 : 245,853.45 = 144,656.70 : x
  2. Step 2: Convert to fraction form
    163,902.30/245,853.45 = 144,656.70/x
  3. Step 3: Cross multiply
    163,902.30x = 245,853.45 × 144,656.70
  4. Step 4: Simplify right side
    163,902.30x = 35,564,348,760.62
  5. Step 5: Solve for x
    x = 35,564,348,760.62/163,902.30
  6. Step 6: Final answer
    x = 216,985.05

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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.