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Finding the Fourth Proportional to 163,532.40, 245,298.60 and 51,221.40

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Solution

The fourth proportional to 163,532.40, 245,298.60 and 51,221.40 is: 76,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,532.40 : 245,298.60 = 51,221.40 : x
  2. Step 2: Convert to fraction form
    163,532.40/245,298.60 = 51,221.40/x
  3. Step 3: Cross multiply
    163,532.40x = 245,298.60 × 51,221.40
  4. Step 4: Simplify right side
    163,532.40x = 12,564,537,710.04
  5. Step 5: Solve for x
    x = 12,564,537,710.04/163,532.40
  6. Step 6: Final answer
    x = 76,832.10

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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.