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Finding the Fourth Proportional to 211,655.45, 292,102.45 and 116,178.32

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Solution

The fourth proportional to 211,655.45, 292,102.45 and 116,178.32 is: 160,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,655.45 : 292,102.45 = 116,178.32 : x
  2. Step 2: Convert to fraction form
    211,655.45/292,102.45 = 116,178.32/x
  3. Step 3: Cross multiply
    211,655.45x = 292,102.45 × 116,178.32
  4. Step 4: Simplify right side
    211,655.45x = 33,935,971,908.88
  5. Step 5: Solve for x
    x = 33,935,971,908.88/211,655.45
  6. Step 6: Final answer
    x = 160,335.92

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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.