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Finding the Fourth Proportional to 108,907.56, 163,284.54 and 42,292.20

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Solution

The fourth proportional to 108,907.56, 163,284.54 and 42,292.20 is: 63,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,907.56 : 163,284.54 = 42,292.20 : x
  2. Step 2: Convert to fraction form
    108,907.56/163,284.54 = 42,292.20/x
  3. Step 3: Cross multiply
    108,907.56x = 163,284.54 × 42,292.20
  4. Step 4: Simplify right side
    108,907.56x = 6,905,662,422.59
  5. Step 5: Solve for x
    x = 6,905,662,422.59/108,907.56
  6. Step 6: Final answer
    x = 63,408.48

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1.5x scale

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.