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Finding the Fourth Proportional to 163,847.52, 245,925.36 and 85,017.60

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Solution

The fourth proportional to 163,847.52, 245,925.36 and 85,017.60 is: 127,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,847.52 : 245,925.36 = 85,017.60 : x
  2. Step 2: Convert to fraction form
    163,847.52/245,925.36 = 85,017.60/x
  3. Step 3: Cross multiply
    163,847.52x = 245,925.36 × 85,017.60
  4. Step 4: Simplify right side
    163,847.52x = 20,907,983,886.34
  5. Step 5: Solve for x
    x = 20,907,983,886.34/163,847.52
  6. Step 6: Final answer
    x = 127,606.35

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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.