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Finding the Fourth Proportional to 80,848.61, 111,574.44 and 45,038.61

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Solution

The fourth proportional to 80,848.61, 111,574.44 and 45,038.61 is: 62,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,848.61 : 111,574.44 = 45,038.61 : x
  2. Step 2: Convert to fraction form
    80,848.61/111,574.44 = 45,038.61/x
  3. Step 3: Cross multiply
    80,848.61x = 111,574.44 × 45,038.61
  4. Step 4: Simplify right side
    80,848.61x = 5,025,157,689.13
  5. Step 5: Solve for x
    x = 5,025,157,689.13/80,848.61
  6. Step 6: Final answer
    x = 62,155.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.