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Finding the Fourth Proportional to 163,610.70, 245,416.05 and 156,698.70

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Solution

The fourth proportional to 163,610.70, 245,416.05 and 156,698.70 is: 235,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,610.70 : 245,416.05 = 156,698.70 : x
  2. Step 2: Convert to fraction form
    163,610.70/245,416.05 = 156,698.70/x
  3. Step 3: Cross multiply
    163,610.70x = 245,416.05 × 156,698.70
  4. Step 4: Simplify right side
    163,610.70x = 38,456,375,994.14
  5. Step 5: Solve for x
    x = 38,456,375,994.14/163,610.70
  6. Step 6: Final answer
    x = 235,048.05

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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.