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Finding the Fourth Proportional to 157,027.40, 235,281.90 and 133,699.40

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Solution

The fourth proportional to 157,027.40, 235,281.90 and 133,699.40 is: 200,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,027.40 : 235,281.90 = 133,699.40 : x
  2. Step 2: Convert to fraction form
    157,027.40/235,281.90 = 133,699.40/x
  3. Step 3: Cross multiply
    157,027.40x = 235,281.90 × 133,699.40
  4. Step 4: Simplify right side
    157,027.40x = 31,457,048,860.86
  5. Step 5: Solve for x
    x = 31,457,048,860.86/157,027.40
  6. Step 6: Final answer
    x = 200,328.41

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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.