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Finding the Fourth Proportional to 93,069.69, 128,436.08 and 50,628.12

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Solution

The fourth proportional to 93,069.69, 128,436.08 and 50,628.12 is: 69,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,069.69 : 128,436.08 = 50,628.12 : x
  2. Step 2: Convert to fraction form
    93,069.69/128,436.08 = 50,628.12/x
  3. Step 3: Cross multiply
    93,069.69x = 128,436.08 × 50,628.12
  4. Step 4: Simplify right side
    93,069.69x = 6,502,477,017.43
  5. Step 5: Solve for x
    x = 6,502,477,017.43/93,069.69
  6. Step 6: Final answer
    x = 69,866.75

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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.