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Finding the Fourth Proportional to 93,975.02, 129,560.05 and 74,658.01

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Solution

The fourth proportional to 93,975.02, 129,560.05 and 74,658.01 is: 102,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,975.02 : 129,560.05 = 74,658.01 : x
  2. Step 2: Convert to fraction form
    93,975.02/129,560.05 = 74,658.01/x
  3. Step 3: Cross multiply
    93,975.02x = 129,560.05 × 74,658.01
  4. Step 4: Simplify right side
    93,975.02x = 9,672,695,508.50
  5. Step 5: Solve for x
    x = 9,672,695,508.50/93,975.02
  6. Step 6: Final answer
    x = 102,928.37

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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.