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Finding the Fourth Proportional to 163,656.40, 245,047.20 and 163,656.40

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Solution

The fourth proportional to 163,656.40, 245,047.20 and 163,656.40 is: 245,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,656.40 : 245,047.20 = 163,656.40 : x
  2. Step 2: Convert to fraction form
    163,656.40/245,047.20 = 163,656.40/x
  3. Step 3: Cross multiply
    163,656.40x = 245,047.20 × 163,656.40
  4. Step 4: Simplify right side
    163,656.40x = 40,103,542,582.08
  5. Step 5: Solve for x
    x = 40,103,542,582.08/163,656.40
  6. Step 6: Final answer
    x = 245,047.20

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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.