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Finding the Fourth Proportional to 210,897.66, 316,346.50 and 92,570.04

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Solution

The fourth proportional to 210,897.66, 316,346.50 and 92,570.04 is: 138,855.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,897.66 : 316,346.50 = 92,570.04 : x
  2. Step 2: Convert to fraction form
    210,897.66/316,346.50 = 92,570.04/x
  3. Step 3: Cross multiply
    210,897.66x = 316,346.50 × 92,570.04
  4. Step 4: Simplify right side
    210,897.66x = 29,284,208,158.86
  5. Step 5: Solve for x
    x = 29,284,208,158.86/210,897.66
  6. Step 6: Final answer
    x = 138,855.06

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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.