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Finding the Fourth Proportional to 60,369.04, 90,533.04 and 20,916.94

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Solution

The fourth proportional to 60,369.04, 90,533.04 and 20,916.94 is: 31,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,369.04 : 90,533.04 = 20,916.94 : x
  2. Step 2: Convert to fraction form
    60,369.04/90,533.04 = 20,916.94/x
  3. Step 3: Cross multiply
    60,369.04x = 90,533.04 × 20,916.94
  4. Step 4: Simplify right side
    60,369.04x = 1,893,674,165.70
  5. Step 5: Solve for x
    x = 1,893,674,165.70/60,369.04
  6. Step 6: Final answer
    x = 31,368.30

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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.