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Finding the Fourth Proportional to 103,630.35, 155,536.65 and 61,457.70

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Solution

The fourth proportional to 103,630.35, 155,536.65 and 61,457.70 is: 92,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.35 : 155,536.65 = 61,457.70 : x
  2. Step 2: Convert to fraction form
    103,630.35/155,536.65 = 61,457.70/x
  3. Step 3: Cross multiply
    103,630.35x = 155,536.65 × 61,457.70
  4. Step 4: Simplify right side
    103,630.35x = 9,558,924,774.71
  5. Step 5: Solve for x
    x = 9,558,924,774.71/103,630.35
  6. Step 6: Final answer
    x = 92,240.59

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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.