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Finding the Fourth Proportional to 253,230.05, 349,565.07 and 157,783.90

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Solution

The fourth proportional to 253,230.05, 349,565.07 and 157,783.90 is: 217,808.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,230.05 : 349,565.07 = 157,783.90 : x
  2. Step 2: Convert to fraction form
    253,230.05/349,565.07 = 157,783.90/x
  3. Step 3: Cross multiply
    253,230.05x = 349,565.07 × 157,783.90
  4. Step 4: Simplify right side
    253,230.05x = 55,155,740,048.37
  5. Step 5: Solve for x
    x = 55,155,740,048.37/253,230.05
  6. Step 6: Final answer
    x = 217,808.83

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1.5x scale

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.