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Finding the Fourth Proportional to 74,038.04, 110,879.10 and 42,352.04

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Solution

The fourth proportional to 74,038.04, 110,879.10 and 42,352.04 is: 63,426.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,038.04 : 110,879.10 = 42,352.04 : x
  2. Step 2: Convert to fraction form
    74,038.04/110,879.10 = 42,352.04/x
  3. Step 3: Cross multiply
    74,038.04x = 110,879.10 × 42,352.04
  4. Step 4: Simplify right side
    74,038.04x = 4,695,956,078.36
  5. Step 5: Solve for x
    x = 4,695,956,078.36/74,038.04
  6. Step 6: Final answer
    x = 63,426.26

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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.