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Finding the Fourth Proportional to 210,392.93, 316,056.50 and 130,489.96

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Solution

The fourth proportional to 210,392.93, 316,056.50 and 130,489.96 is: 196,024.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,392.93 : 316,056.50 = 130,489.96 : x
  2. Step 2: Convert to fraction form
    210,392.93/316,056.50 = 130,489.96/x
  3. Step 3: Cross multiply
    210,392.93x = 316,056.50 × 130,489.96
  4. Step 4: Simplify right side
    210,392.93x = 41,242,199,512.89
  5. Step 5: Solve for x
    x = 41,242,199,512.89/210,392.93
  6. Step 6: Final answer
    x = 196,024.64

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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.