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Finding the Fourth Proportional to 153,226.74, 211,455.74 and 85,250.04

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Solution

The fourth proportional to 153,226.74, 211,455.74 and 85,250.04 is: 117,646.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,226.74 : 211,455.74 = 85,250.04 : x
  2. Step 2: Convert to fraction form
    153,226.74/211,455.74 = 85,250.04/x
  3. Step 3: Cross multiply
    153,226.74x = 211,455.74 × 85,250.04
  4. Step 4: Simplify right side
    153,226.74x = 18,026,609,866.98
  5. Step 5: Solve for x
    x = 18,026,609,866.98/153,226.74
  6. Step 6: Final answer
    x = 117,646.63

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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.