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Finding the Fourth Proportional to 108,516.30, 162,774.45 and 61,860.30

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Solution

The fourth proportional to 108,516.30, 162,774.45 and 61,860.30 is: 92,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,516.30 : 162,774.45 = 61,860.30 : x
  2. Step 2: Convert to fraction form
    108,516.30/162,774.45 = 61,860.30/x
  3. Step 3: Cross multiply
    108,516.30x = 162,774.45 × 61,860.30
  4. Step 4: Simplify right side
    108,516.30x = 10,069,276,309.34
  5. Step 5: Solve for x
    x = 10,069,276,309.34/108,516.30
  6. Step 6: Final answer
    x = 92,790.45

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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.