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Finding the Fourth Proportional to 163,645.20, 245,467.80 and 58,467.60

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Solution

The fourth proportional to 163,645.20, 245,467.80 and 58,467.60 is: 87,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,645.20 : 245,467.80 = 58,467.60 : x
  2. Step 2: Convert to fraction form
    163,645.20/245,467.80 = 58,467.60/x
  3. Step 3: Cross multiply
    163,645.20x = 245,467.80 × 58,467.60
  4. Step 4: Simplify right side
    163,645.20x = 14,351,913,143.28
  5. Step 5: Solve for x
    x = 14,351,913,143.28/163,645.20
  6. Step 6: Final answer
    x = 87,701.40

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1.5x scale

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.