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Finding the Fourth Proportional to 230,897.89, 346,398.77 and 81,148.53

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Solution

The fourth proportional to 230,897.89, 346,398.77 and 81,148.53 is: 121,741.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,897.89 : 346,398.77 = 81,148.53 : x
  2. Step 2: Convert to fraction form
    230,897.89/346,398.77 = 81,148.53/x
  3. Step 3: Cross multiply
    230,897.89x = 346,398.77 × 81,148.53
  4. Step 4: Simplify right side
    230,897.89x = 28,109,750,979.31
  5. Step 5: Solve for x
    x = 28,109,750,979.31/230,897.89
  6. Step 6: Final answer
    x = 121,741.05

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1.5x scale

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.