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Finding the Fourth Proportional to 266,770.91, 368,155.65 and 153,630.11

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Solution

The fourth proportional to 266,770.91, 368,155.65 and 153,630.11 is: 212,016.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,770.91 : 368,155.65 = 153,630.11 : x
  2. Step 2: Convert to fraction form
    266,770.91/368,155.65 = 153,630.11/x
  3. Step 3: Cross multiply
    266,770.91x = 368,155.65 × 153,630.11
  4. Step 4: Simplify right side
    266,770.91x = 56,559,791,165.84
  5. Step 5: Solve for x
    x = 56,559,791,165.84/266,770.91
  6. Step 6: Final answer
    x = 212,016.34

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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.