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Finding the Fourth Proportional to 210,679.49, 316,050.70 and 77,549.62

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Solution

The fourth proportional to 210,679.49, 316,050.70 and 77,549.62 is: 116,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,679.49 : 316,050.70 = 77,549.62 : x
  2. Step 2: Convert to fraction form
    210,679.49/316,050.70 = 77,549.62/x
  3. Step 3: Cross multiply
    210,679.49x = 316,050.70 × 77,549.62
  4. Step 4: Simplify right side
    210,679.49x = 24,509,611,685.73
  5. Step 5: Solve for x
    x = 24,509,611,685.73/210,679.49
  6. Step 6: Final answer
    x = 116,336.01

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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.