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Finding the Fourth Proportional to 237,615.77, 356,393.88 and 77,678.30

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Solution

The fourth proportional to 237,615.77, 356,393.88 and 77,678.30 is: 116,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,615.77 : 356,393.88 = 77,678.30 : x
  2. Step 2: Convert to fraction form
    237,615.77/356,393.88 = 77,678.30/x
  3. Step 3: Cross multiply
    237,615.77x = 356,393.88 × 77,678.30
  4. Step 4: Simplify right side
    237,615.77x = 27,684,068,946.83
  5. Step 5: Solve for x
    x = 27,684,068,946.83/237,615.77
  6. Step 6: Final answer
    x = 116,507.71

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1.5x scale

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.