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Finding the Fourth Proportional to 157,050.90, 235,317.15 and 133,722.90

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Solution

The fourth proportional to 157,050.90, 235,317.15 and 133,722.90 is: 200,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,050.90 : 235,317.15 = 133,722.90 : x
  2. Step 2: Convert to fraction form
    157,050.90/235,317.15 = 133,722.90/x
  3. Step 3: Cross multiply
    157,050.90x = 235,317.15 × 133,722.90
  4. Step 4: Simplify right side
    157,050.90x = 31,467,291,717.74
  5. Step 5: Solve for x
    x = 31,467,291,717.74/157,050.90
  6. Step 6: Final answer
    x = 200,363.65

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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.