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Finding the Fourth Proportional to 93,783.92, 129,386.47 and 61,536.34

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Solution

The fourth proportional to 93,783.92, 129,386.47 and 61,536.34 is: 84,896.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,783.92 : 129,386.47 = 61,536.34 : x
  2. Step 2: Convert to fraction form
    93,783.92/129,386.47 = 61,536.34/x
  3. Step 3: Cross multiply
    93,783.92x = 129,386.47 × 61,536.34
  4. Step 4: Simplify right side
    93,783.92x = 7,961,969,162.39
  5. Step 5: Solve for x
    x = 7,961,969,162.39/93,783.92
  6. Step 6: Final answer
    x = 84,896.96

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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.