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Finding the Fourth Proportional to 163,411.98, 245,132.09 and 45,083.32

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Solution

The fourth proportional to 163,411.98, 245,132.09 and 45,083.32 is: 67,628.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,411.98 : 245,132.09 = 45,083.32 : x
  2. Step 2: Convert to fraction form
    163,411.98/245,132.09 = 45,083.32/x
  3. Step 3: Cross multiply
    163,411.98x = 245,132.09 × 45,083.32
  4. Step 4: Simplify right side
    163,411.98x = 11,051,368,455.74
  5. Step 5: Solve for x
    x = 11,051,368,455.74/163,411.98
  6. Step 6: Final answer
    x = 67,628.88

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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.