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Finding the Fourth Proportional to 108,812.30, 163,218.45 and 73,561.10

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Solution

The fourth proportional to 108,812.30, 163,218.45 and 73,561.10 is: 110,341.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,812.30 : 163,218.45 = 73,561.10 : x
  2. Step 2: Convert to fraction form
    108,812.30/163,218.45 = 73,561.10/x
  3. Step 3: Cross multiply
    108,812.30x = 163,218.45 × 73,561.10
  4. Step 4: Simplify right side
    108,812.30x = 12,006,528,722.30
  5. Step 5: Solve for x
    x = 12,006,528,722.30/108,812.30
  6. Step 6: Final answer
    x = 110,341.65

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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.