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Finding the Fourth Proportional to 228,681.84, 343,059.12 and 70,877.64

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Solution

The fourth proportional to 228,681.84, 343,059.12 and 70,877.64 is: 106,327.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,681.84 : 343,059.12 = 70,877.64 : x
  2. Step 2: Convert to fraction form
    228,681.84/343,059.12 = 70,877.64/x
  3. Step 3: Cross multiply
    228,681.84x = 343,059.12 × 70,877.64
  4. Step 4: Simplify right side
    228,681.84x = 24,315,220,806.08
  5. Step 5: Solve for x
    x = 24,315,220,806.08/228,681.84
  6. Step 6: Final answer
    x = 106,327.73

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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.