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Finding the Fourth Proportional to 238,509.61, 357,760.77 and 61,015.12

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Solution

The fourth proportional to 238,509.61, 357,760.77 and 61,015.12 is: 91,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,509.61 : 357,760.77 = 61,015.12 : x
  2. Step 2: Convert to fraction form
    238,509.61/357,760.77 = 61,015.12/x
  3. Step 3: Cross multiply
    238,509.61x = 357,760.77 × 61,015.12
  4. Step 4: Simplify right side
    238,509.61x = 21,828,816,312.84
  5. Step 5: Solve for x
    x = 21,828,816,312.84/238,509.61
  6. Step 6: Final answer
    x = 91,521.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.