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Finding the Fourth Proportional to 266,597.61, 367,903.80 and 145,738.86

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Solution

The fourth proportional to 266,597.61, 367,903.80 and 145,738.86 is: 201,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,597.61 : 367,903.80 = 145,738.86 : x
  2. Step 2: Convert to fraction form
    266,597.61/367,903.80 = 145,738.86/x
  3. Step 3: Cross multiply
    266,597.61x = 367,903.80 × 145,738.86
  4. Step 4: Simplify right side
    266,597.61x = 53,617,880,401.67
  5. Step 5: Solve for x
    x = 53,617,880,401.67/266,597.61
  6. Step 6: Final answer
    x = 201,119.13

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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.