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Finding the Fourth Proportional to 108,532.60, 162,798.90 and 45,341.80

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Solution

The fourth proportional to 108,532.60, 162,798.90 and 45,341.80 is: 68,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,532.60 : 162,798.90 = 45,341.80 : x
  2. Step 2: Convert to fraction form
    108,532.60/162,798.90 = 45,341.80/x
  3. Step 3: Cross multiply
    108,532.60x = 162,798.90 × 45,341.80
  4. Step 4: Simplify right side
    108,532.60x = 7,381,595,164.02
  5. Step 5: Solve for x
    x = 7,381,595,164.02/108,532.60
  6. Step 6: Final answer
    x = 68,012.70

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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.