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Finding the Fourth Proportional to 93,416.67, 128,913.80 and 50,974.47

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Solution

The fourth proportional to 93,416.67, 128,913.80 and 50,974.47 is: 70,344.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,416.67 : 128,913.80 = 50,974.47 : x
  2. Step 2: Convert to fraction form
    93,416.67/128,913.80 = 50,974.47/x
  3. Step 3: Cross multiply
    93,416.67x = 128,913.80 × 50,974.47
  4. Step 4: Simplify right side
    93,416.67x = 6,571,312,375.81
  5. Step 5: Solve for x
    x = 6,571,312,375.81/93,416.67
  6. Step 6: Final answer
    x = 70,344.11

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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.