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Finding the Fourth Proportional to 93,571.64, 129,083.76 and 68,038.40

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Solution

The fourth proportional to 93,571.64, 129,083.76 and 68,038.40 is: 93,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,571.64 : 129,083.76 = 68,038.40 : x
  2. Step 2: Convert to fraction form
    93,571.64/129,083.76 = 68,038.40/x
  3. Step 3: Cross multiply
    93,571.64x = 129,083.76 × 68,038.40
  4. Step 4: Simplify right side
    93,571.64x = 8,782,652,496.38
  5. Step 5: Solve for x
    x = 8,782,652,496.38/93,571.64
  6. Step 6: Final answer
    x = 93,860.20

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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.