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Finding the Fourth Proportional to 93,122.52, 128,511.80 and 50,683.80

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Solution

The fourth proportional to 93,122.52, 128,511.80 and 50,683.80 is: 69,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,122.52 : 128,511.80 = 50,683.80 : x
  2. Step 2: Convert to fraction form
    93,122.52/128,511.80 = 50,683.80/x
  3. Step 3: Cross multiply
    93,122.52x = 128,511.80 × 50,683.80
  4. Step 4: Simplify right side
    93,122.52x = 6,513,466,368.84
  5. Step 5: Solve for x
    x = 6,513,466,368.84/93,122.52
  6. Step 6: Final answer
    x = 69,945.13

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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.