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Finding the Fourth Proportional to 163,564.80, 245,347.20 and 110,420.70

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Solution

The fourth proportional to 163,564.80, 245,347.20 and 110,420.70 is: 165,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,564.80 : 245,347.20 = 110,420.70 : x
  2. Step 2: Convert to fraction form
    163,564.80/245,347.20 = 110,420.70/x
  3. Step 3: Cross multiply
    163,564.80x = 245,347.20 × 110,420.70
  4. Step 4: Simplify right side
    163,564.80x = 27,091,409,567.04
  5. Step 5: Solve for x
    x = 27,091,409,567.04/163,564.80
  6. Step 6: Final answer
    x = 165,631.05

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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.