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Finding the Fourth Proportional to 209,337.48, 314,006.36 and 90,944.24

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Solution

The fourth proportional to 209,337.48, 314,006.36 and 90,944.24 is: 136,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,337.48 : 314,006.36 = 90,944.24 : x
  2. Step 2: Convert to fraction form
    209,337.48/314,006.36 = 90,944.24/x
  3. Step 3: Cross multiply
    209,337.48x = 314,006.36 × 90,944.24
  4. Step 4: Simplify right side
    209,337.48x = 28,557,067,740.61
  5. Step 5: Solve for x
    x = 28,557,067,740.61/209,337.48
  6. Step 6: Final answer
    x = 136,416.41

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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.