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Finding the Fourth Proportional to 93,063.91, 128,500.28 and 71,519.53

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Solution

The fourth proportional to 93,063.91, 128,500.28 and 71,519.53 is: 98,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,063.91 : 128,500.28 = 71,519.53 : x
  2. Step 2: Convert to fraction form
    93,063.91/128,500.28 = 71,519.53/x
  3. Step 3: Cross multiply
    93,063.91x = 128,500.28 × 71,519.53
  4. Step 4: Simplify right side
    93,063.91x = 9,190,279,630.47
  5. Step 5: Solve for x
    x = 9,190,279,630.47/93,063.91
  6. Step 6: Final answer
    x = 98,752.35

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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.