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Finding the Fourth Proportional to 88,045.80, 132,068.70 and 35,428.20

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Solution

The fourth proportional to 88,045.80, 132,068.70 and 35,428.20 is: 53,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,045.80 : 132,068.70 = 35,428.20 : x
  2. Step 2: Convert to fraction form
    88,045.80/132,068.70 = 35,428.20/x
  3. Step 3: Cross multiply
    88,045.80x = 132,068.70 × 35,428.20
  4. Step 4: Simplify right side
    88,045.80x = 4,678,956,317.34
  5. Step 5: Solve for x
    x = 4,678,956,317.34/88,045.80
  6. Step 6: Final answer
    x = 53,142.30

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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.