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Finding the Fourth Proportional to 111,570.93, 153,967.77 and 61,269.93

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Solution

The fourth proportional to 111,570.93, 153,967.77 and 61,269.93 is: 84,552.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,570.93 : 153,967.77 = 61,269.93 : x
  2. Step 2: Convert to fraction form
    111,570.93/153,967.77 = 61,269.93/x
  3. Step 3: Cross multiply
    111,570.93x = 153,967.77 × 61,269.93
  4. Step 4: Simplify right side
    111,570.93x = 9,433,594,490.16
  5. Step 5: Solve for x
    x = 9,433,594,490.16/111,570.93
  6. Step 6: Final answer
    x = 84,552.44

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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.