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Finding the Fourth Proportional to 93,605.50, 129,175.59 and 51,164.20

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Solution

The fourth proportional to 93,605.50, 129,175.59 and 51,164.20 is: 70,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,605.50 : 129,175.59 = 51,164.20 : x
  2. Step 2: Convert to fraction form
    93,605.50/129,175.59 = 51,164.20/x
  3. Step 3: Cross multiply
    93,605.50x = 129,175.59 × 51,164.20
  4. Step 4: Simplify right side
    93,605.50x = 6,609,165,721.88
  5. Step 5: Solve for x
    x = 6,609,165,721.88/93,605.50
  6. Step 6: Final answer
    x = 70,606.60

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1.5x scale

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.