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Finding the Fourth Proportional to 108,655.70, 162,983.55 and 105,026.90

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Solution

The fourth proportional to 108,655.70, 162,983.55 and 105,026.90 is: 157,540.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,655.70 : 162,983.55 = 105,026.90 : x
  2. Step 2: Convert to fraction form
    108,655.70/162,983.55 = 105,026.90/x
  3. Step 3: Cross multiply
    108,655.70x = 162,983.55 × 105,026.90
  4. Step 4: Simplify right side
    108,655.70x = 17,117,657,007.50
  5. Step 5: Solve for x
    x = 17,117,657,007.50/108,655.70
  6. Step 6: Final answer
    x = 157,540.35

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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.