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Finding the Fourth Proportional to 93,777.34, 129,473.08 and 83,688.44

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Solution

The fourth proportional to 93,777.34, 129,473.08 and 83,688.44 is: 115,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,777.34 : 129,473.08 = 83,688.44 : x
  2. Step 2: Convert to fraction form
    93,777.34/129,473.08 = 83,688.44/x
  3. Step 3: Cross multiply
    93,777.34x = 129,473.08 × 83,688.44
  4. Step 4: Simplify right side
    93,777.34x = 10,835,400,087.20
  5. Step 5: Solve for x
    x = 10,835,400,087.20/93,777.34
  6. Step 6: Final answer
    x = 115,543.91

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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.