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Finding the Fourth Proportional to 111,333.92, 153,642.96 and 61,029.92

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Solution

The fourth proportional to 111,333.92, 153,642.96 and 61,029.92 is: 84,222.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,333.92 : 153,642.96 = 61,029.92 : x
  2. Step 2: Convert to fraction form
    111,333.92/153,642.96 = 61,029.92/x
  3. Step 3: Cross multiply
    111,333.92x = 153,642.96 × 61,029.92
  4. Step 4: Simplify right side
    111,333.92x = 9,376,817,557.36
  5. Step 5: Solve for x
    x = 9,376,817,557.36/111,333.92
  6. Step 6: Final answer
    x = 84,222.47

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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.