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Finding the Fourth Proportional to 84,602.34, 116,707.56 and 57,369.22

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Solution

The fourth proportional to 84,602.34, 116,707.56 and 57,369.22 is: 79,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,602.34 : 116,707.56 = 57,369.22 : x
  2. Step 2: Convert to fraction form
    84,602.34/116,707.56 = 57,369.22/x
  3. Step 3: Cross multiply
    84,602.34x = 116,707.56 × 57,369.22
  4. Step 4: Simplify right side
    84,602.34x = 6,695,420,814.92
  5. Step 5: Solve for x
    x = 6,695,420,814.92/84,602.34
  6. Step 6: Final answer
    x = 79,139.90

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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.