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Finding the Fourth Proportional to 211,686.01, 292,124.21 and 114,890.03

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Solution

The fourth proportional to 211,686.01, 292,124.21 and 114,890.03 is: 158,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,686.01 : 292,124.21 = 114,890.03 : x
  2. Step 2: Convert to fraction form
    211,686.01/292,124.21 = 114,890.03/x
  3. Step 3: Cross multiply
    211,686.01x = 292,124.21 × 114,890.03
  4. Step 4: Simplify right side
    211,686.01x = 33,562,160,028.11
  5. Step 5: Solve for x
    x = 33,562,160,028.11/211,686.01
  6. Step 6: Final answer
    x = 158,546.90

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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.