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Finding the Fourth Proportional to 185,706.17, 256,514.90 and 153,570.59

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Solution

The fourth proportional to 185,706.17, 256,514.90 and 153,570.59 is: 212,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,706.17 : 256,514.90 = 153,570.59 : x
  2. Step 2: Convert to fraction form
    185,706.17/256,514.90 = 153,570.59/x
  3. Step 3: Cross multiply
    185,706.17x = 256,514.90 × 153,570.59
  4. Step 4: Simplify right side
    185,706.17x = 39,393,142,486.36
  5. Step 5: Solve for x
    x = 39,393,142,486.36/185,706.17
  6. Step 6: Final answer
    x = 212,126.20

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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.