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Finding the Fourth Proportional to 163,776.76, 245,665.26 and 45,448.21

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Solution

The fourth proportional to 163,776.76, 245,665.26 and 45,448.21 is: 68,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,776.76 : 245,665.26 = 45,448.21 : x
  2. Step 2: Convert to fraction form
    163,776.76/245,665.26 = 45,448.21/x
  3. Step 3: Cross multiply
    163,776.76x = 245,665.26 × 45,448.21
  4. Step 4: Simplify right side
    163,776.76x = 11,165,046,326.18
  5. Step 5: Solve for x
    x = 11,165,046,326.18/163,776.76
  6. Step 6: Final answer
    x = 68,172.35

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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.