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Finding the Fourth Proportional to 111,594, 153,999.72 and 61,293

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Solution

The fourth proportional to 111,594, 153,999.72 and 61,293 is: 84,584.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,594 : 153,999.72 = 61,293 : x
  2. Step 2: Convert to fraction form
    111,594/153,999.72 = 61,293/x
  3. Step 3: Cross multiply
    111,594x = 153,999.72 × 61,293
  4. Step 4: Simplify right side
    111,594x = 9,439,104,837.96
  5. Step 5: Solve for x
    x = 9,439,104,837.96/111,594
  6. Step 6: Final answer
    x = 84,584.34

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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.