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Finding the Fourth Proportional to 230,706.78, 318,397.28 and 140,041.91

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Solution

The fourth proportional to 230,706.78, 318,397.28 and 140,041.91 is: 193,271.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,706.78 : 318,397.28 = 140,041.91 : x
  2. Step 2: Convert to fraction form
    230,706.78/318,397.28 = 140,041.91/x
  3. Step 3: Cross multiply
    230,706.78x = 318,397.28 × 140,041.91
  4. Step 4: Simplify right side
    230,706.78x = 44,588,960,937.81
  5. Step 5: Solve for x
    x = 44,588,960,937.81/230,706.78
  6. Step 6: Final answer
    x = 193,271.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.