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Finding the Fourth Proportional to 211,094.86, 316,643.91 and 61,345.30

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Solution

The fourth proportional to 211,094.86, 316,643.91 and 61,345.30 is: 92,018.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,094.86 : 316,643.91 = 61,345.30 : x
  2. Step 2: Convert to fraction form
    211,094.86/316,643.91 = 61,345.30/x
  3. Step 3: Cross multiply
    211,094.86x = 316,643.91 × 61,345.30
  4. Step 4: Simplify right side
    211,094.86x = 19,424,615,652.12
  5. Step 5: Solve for x
    x = 19,424,615,652.12/211,094.86
  6. Step 6: Final answer
    x = 92,018.42

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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.