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Finding the Fourth Proportional to 153,554.33, 211,896.22 and 84,630.10

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Solution

The fourth proportional to 153,554.33, 211,896.22 and 84,630.10 is: 116,784.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,554.33 : 211,896.22 = 84,630.10 : x
  2. Step 2: Convert to fraction form
    153,554.33/211,896.22 = 84,630.10/x
  3. Step 3: Cross multiply
    153,554.33x = 211,896.22 × 84,630.10
  4. Step 4: Simplify right side
    153,554.33x = 17,932,798,288.22
  5. Step 5: Solve for x
    x = 17,932,798,288.22/153,554.33
  6. Step 6: Final answer
    x = 116,784.71

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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.