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Finding the Fourth Proportional to 163,816.30, 245,724.45 and 53,008.30

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Solution

The fourth proportional to 163,816.30, 245,724.45 and 53,008.30 is: 79,512.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,816.30 : 245,724.45 = 53,008.30 : x
  2. Step 2: Convert to fraction form
    163,816.30/245,724.45 = 53,008.30/x
  3. Step 3: Cross multiply
    163,816.30x = 245,724.45 × 53,008.30
  4. Step 4: Simplify right side
    163,816.30x = 13,025,435,362.94
  5. Step 5: Solve for x
    x = 13,025,435,362.94/163,816.30
  6. Step 6: Final answer
    x = 79,512.45

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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.