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Finding the Fourth Proportional to 111,336.96, 153,654.74 and 61,045.68

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Solution

The fourth proportional to 111,336.96, 153,654.74 and 61,045.68 is: 84,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,336.96 : 153,654.74 = 61,045.68 : x
  2. Step 2: Convert to fraction form
    111,336.96/153,654.74 = 61,045.68/x
  3. Step 3: Cross multiply
    111,336.96x = 153,654.74 × 61,045.68
  4. Step 4: Simplify right side
    111,336.96x = 9,379,958,088.52
  5. Step 5: Solve for x
    x = 9,379,958,088.52/111,336.96
  6. Step 6: Final answer
    x = 84,248.38

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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.