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Finding the Fourth Proportional to 108,123.40, 162,095.46 and 66,482.92

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Solution

The fourth proportional to 108,123.40, 162,095.46 and 66,482.92 is: 99,669.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,123.40 : 162,095.46 = 66,482.92 : x
  2. Step 2: Convert to fraction form
    108,123.40/162,095.46 = 66,482.92/x
  3. Step 3: Cross multiply
    108,123.40x = 162,095.46 × 66,482.92
  4. Step 4: Simplify right side
    108,123.40x = 10,776,579,499.54
  5. Step 5: Solve for x
    x = 10,776,579,499.54/108,123.40
  6. Step 6: Final answer
    x = 99,669.26

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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.