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Finding the Fourth Proportional to 93,666.63, 129,261.42 and 53,379.51

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Solution

The fourth proportional to 93,666.63, 129,261.42 and 53,379.51 is: 73,664.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,666.63 : 129,261.42 = 53,379.51 : x
  2. Step 2: Convert to fraction form
    93,666.63/129,261.42 = 53,379.51/x
  3. Step 3: Cross multiply
    93,666.63x = 129,261.42 × 53,379.51
  4. Step 4: Simplify right side
    93,666.63x = 6,899,910,776.77
  5. Step 5: Solve for x
    x = 6,899,910,776.77/93,666.63
  6. Step 6: Final answer
    x = 73,664.56

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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.