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Finding the Fourth Proportional to 163,957.20, 245,935.80 and 161,624.40

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Solution

The fourth proportional to 163,957.20, 245,935.80 and 161,624.40 is: 242,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,957.20 : 245,935.80 = 161,624.40 : x
  2. Step 2: Convert to fraction form
    163,957.20/245,935.80 = 161,624.40/x
  3. Step 3: Cross multiply
    163,957.20x = 245,935.80 × 161,624.40
  4. Step 4: Simplify right side
    163,957.20x = 39,749,226,113.52
  5. Step 5: Solve for x
    x = 39,749,226,113.52/163,957.20
  6. Step 6: Final answer
    x = 242,436.60

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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.