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Finding the Fourth Proportional to 160,987.30, 241,590.30 and 89,909.80

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Solution

The fourth proportional to 160,987.30, 241,590.30 and 89,909.80 is: 134,925.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,987.30 : 241,590.30 = 89,909.80 : x
  2. Step 2: Convert to fraction form
    160,987.30/241,590.30 = 89,909.80/x
  3. Step 3: Cross multiply
    160,987.30x = 241,590.30 × 89,909.80
  4. Step 4: Simplify right side
    160,987.30x = 21,721,335,554.94
  5. Step 5: Solve for x
    x = 21,721,335,554.94/160,987.30
  6. Step 6: Final answer
    x = 134,925.77

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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.