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Finding the Fourth Proportional to 163,705.77, 245,534.36 and 45,364.77

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Solution

The fourth proportional to 163,705.77, 245,534.36 and 45,364.77 is: 68,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,705.77 : 245,534.36 = 45,364.77 : x
  2. Step 2: Convert to fraction form
    163,705.77/245,534.36 = 45,364.77/x
  3. Step 3: Cross multiply
    163,705.77x = 245,534.36 × 45,364.77
  4. Step 4: Simplify right side
    163,705.77x = 11,138,609,541.67
  5. Step 5: Solve for x
    x = 11,138,609,541.67/163,705.77
  6. Step 6: Final answer
    x = 68,040.42

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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.