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Finding the Fourth Proportional to 214,877.76, 322,316.64 and 67,133.76

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Solution

The fourth proportional to 214,877.76, 322,316.64 and 67,133.76 is: 100,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,877.76 : 322,316.64 = 67,133.76 : x
  2. Step 2: Convert to fraction form
    214,877.76/322,316.64 = 67,133.76/x
  3. Step 3: Cross multiply
    214,877.76x = 322,316.64 × 67,133.76
  4. Step 4: Simplify right side
    214,877.76x = 21,638,327,953.77
  5. Step 5: Solve for x
    x = 21,638,327,953.77/214,877.76
  6. Step 6: Final answer
    x = 100,700.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.