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Finding the Fourth Proportional to 221,577.66, 306,031.77 and 161,417.34

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Solution

The fourth proportional to 221,577.66, 306,031.77 and 161,417.34 is: 222,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,577.66 : 306,031.77 = 161,417.34 : x
  2. Step 2: Convert to fraction form
    221,577.66/306,031.77 = 161,417.34/x
  3. Step 3: Cross multiply
    221,577.66x = 306,031.77 × 161,417.34
  4. Step 4: Simplify right side
    221,577.66x = 49,398,834,268.89
  5. Step 5: Solve for x
    x = 49,398,834,268.89/221,577.66
  6. Step 6: Final answer
    x = 222,941.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.