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Finding the Fourth Proportional to 238,656.77, 357,934.79 and 70,131.32

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Solution

The fourth proportional to 238,656.77, 357,934.79 and 70,131.32 is: 105,182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,656.77 : 357,934.79 = 70,131.32 : x
  2. Step 2: Convert to fraction form
    238,656.77/357,934.79 = 70,131.32/x
  3. Step 3: Cross multiply
    238,656.77x = 357,934.79 × 70,131.32
  4. Step 4: Simplify right side
    238,656.77x = 25,102,437,156.29
  5. Step 5: Solve for x
    x = 25,102,437,156.29/238,656.77
  6. Step 6: Final answer
    x = 105,182.17

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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.