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Finding the Fourth Proportional to 113,671.52, 170,507.04 and 30,565.60

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Solution

The fourth proportional to 113,671.52, 170,507.04 and 30,565.60 is: 45,848.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,671.52 : 170,507.04 = 30,565.60 : x
  2. Step 2: Convert to fraction form
    113,671.52/170,507.04 = 30,565.60/x
  3. Step 3: Cross multiply
    113,671.52x = 170,507.04 × 30,565.60
  4. Step 4: Simplify right side
    113,671.52x = 5,211,649,981.82
  5. Step 5: Solve for x
    x = 5,211,649,981.82/113,671.52
  6. Step 6: Final answer
    x = 45,848.34

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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.