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Finding the Fourth Proportional to 60,045.44, 89,969.76 and 42,429.20

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Solution

The fourth proportional to 60,045.44, 89,969.76 and 42,429.20 is: 63,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,045.44 : 89,969.76 = 42,429.20 : x
  2. Step 2: Convert to fraction form
    60,045.44/89,969.76 = 42,429.20/x
  3. Step 3: Cross multiply
    60,045.44x = 89,969.76 × 42,429.20
  4. Step 4: Simplify right side
    60,045.44x = 3,817,344,940.99
  5. Step 5: Solve for x
    x = 3,817,344,940.99/60,045.44
  6. Step 6: Final answer
    x = 63,574.27

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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.