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Finding the Fourth Proportional to 78,875.34, 108,857.51 and 44,892.09

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Solution

The fourth proportional to 78,875.34, 108,857.51 and 44,892.09 is: 61,956.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,875.34 : 108,857.51 = 44,892.09 : x
  2. Step 2: Convert to fraction form
    78,875.34/108,857.51 = 44,892.09/x
  3. Step 3: Cross multiply
    78,875.34x = 108,857.51 × 44,892.09
  4. Step 4: Simplify right side
    78,875.34x = 4,886,840,911.64
  5. Step 5: Solve for x
    x = 4,886,840,911.64/78,875.34
  6. Step 6: Final answer
    x = 61,956.51

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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.