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Finding the Fourth Proportional to 210,957.72, 316,396.26 and 63,213.72

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Solution

The fourth proportional to 210,957.72, 316,396.26 and 63,213.72 is: 94,808.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,957.72 : 316,396.26 = 63,213.72 : x
  2. Step 2: Convert to fraction form
    210,957.72/316,396.26 = 63,213.72/x
  3. Step 3: Cross multiply
    210,957.72x = 316,396.26 × 63,213.72
  4. Step 4: Simplify right side
    210,957.72x = 20,000,584,588.69
  5. Step 5: Solve for x
    x = 20,000,584,588.69/210,957.72
  6. Step 6: Final answer
    x = 94,808.50

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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.