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Finding the Fourth Proportional to 163,617.20, 245,425.80 and 162,580.40

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Solution

The fourth proportional to 163,617.20, 245,425.80 and 162,580.40 is: 243,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,617.20 : 245,425.80 = 162,580.40 : x
  2. Step 2: Convert to fraction form
    163,617.20/245,425.80 = 162,580.40/x
  3. Step 3: Cross multiply
    163,617.20x = 245,425.80 × 162,580.40
  4. Step 4: Simplify right side
    163,617.20x = 39,901,424,734.32
  5. Step 5: Solve for x
    x = 39,901,424,734.32/163,617.20
  6. Step 6: Final answer
    x = 243,870.60

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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.