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Finding the Fourth Proportional to 211,252.99, 316,931.43 and 61,494.57

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Solution

The fourth proportional to 211,252.99, 316,931.43 and 61,494.57 is: 92,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,252.99 : 316,931.43 = 61,494.57 : x
  2. Step 2: Convert to fraction form
    211,252.99/316,931.43 = 61,494.57/x
  3. Step 3: Cross multiply
    211,252.99x = 316,931.43 × 61,494.57
  4. Step 4: Simplify right side
    211,252.99x = 19,489,562,888.36
  5. Step 5: Solve for x
    x = 19,489,562,888.36/211,252.99
  6. Step 6: Final answer
    x = 92,256.98

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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.