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Finding the Fourth Proportional to 266,672.10, 368,100.16 and 153,539.94

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Solution

The fourth proportional to 266,672.10, 368,100.16 and 153,539.94 is: 211,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,672.10 : 368,100.16 = 153,539.94 : x
  2. Step 2: Convert to fraction form
    266,672.10/368,100.16 = 153,539.94/x
  3. Step 3: Cross multiply
    266,672.10x = 368,100.16 × 153,539.94
  4. Step 4: Simplify right side
    266,672.10x = 56,518,076,480.39
  5. Step 5: Solve for x
    x = 56,518,076,480.39/266,672.10
  6. Step 6: Final answer
    x = 211,938.47

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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.