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Finding the Fourth Proportional to 93,284.52, 128,728.89 and 50,842.14

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Solution

The fourth proportional to 93,284.52, 128,728.89 and 50,842.14 is: 70,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,284.52 : 128,728.89 = 50,842.14 : x
  2. Step 2: Convert to fraction form
    93,284.52/128,728.89 = 50,842.14/x
  3. Step 3: Cross multiply
    93,284.52x = 128,728.89 × 50,842.14
  4. Step 4: Simplify right side
    93,284.52x = 6,544,852,247.42
  5. Step 5: Solve for x
    x = 6,544,852,247.42/93,284.52
  6. Step 6: Final answer
    x = 70,160.11

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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.