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Finding the Fourth Proportional to 111,592.59, 153,998.87 and 61,291.59

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Solution

The fourth proportional to 111,592.59, 153,998.87 and 61,291.59 is: 84,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,592.59 : 153,998.87 = 61,291.59 : x
  2. Step 2: Convert to fraction form
    111,592.59/153,998.87 = 61,291.59/x
  3. Step 3: Cross multiply
    111,592.59x = 153,998.87 × 61,291.59
  4. Step 4: Simplify right side
    111,592.59x = 9,438,835,294.05
  5. Step 5: Solve for x
    x = 9,438,835,294.05/111,592.59
  6. Step 6: Final answer
    x = 84,582.99

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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.