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Finding the Fourth Proportional to 210,551.30, 290,590.42 and 134,045.95

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Solution

The fourth proportional to 210,551.30, 290,590.42 and 134,045.95 is: 185,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,551.30 : 290,590.42 = 134,045.95 : x
  2. Step 2: Convert to fraction form
    210,551.30/290,590.42 = 134,045.95/x
  3. Step 3: Cross multiply
    210,551.30x = 290,590.42 × 134,045.95
  4. Step 4: Simplify right side
    210,551.30x = 38,952,468,909.80
  5. Step 5: Solve for x
    x = 38,952,468,909.80/210,551.30
  6. Step 6: Final answer
    x = 185,002.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.