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Finding the Fourth Proportional to 93,551.12, 129,059.40 and 55,803.50

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Solution

The fourth proportional to 93,551.12, 129,059.40 and 55,803.50 is: 76,984.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,551.12 : 129,059.40 = 55,803.50 : x
  2. Step 2: Convert to fraction form
    93,551.12/129,059.40 = 55,803.50/x
  3. Step 3: Cross multiply
    93,551.12x = 129,059.40 × 55,803.50
  4. Step 4: Simplify right side
    93,551.12x = 7,201,966,227.90
  5. Step 5: Solve for x
    x = 7,201,966,227.90/93,551.12
  6. Step 6: Final answer
    x = 76,984.29

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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.