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Finding the Fourth Proportional to 157,215.60, 235,607.40 and 100,882.80

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Solution

The fourth proportional to 157,215.60, 235,607.40 and 100,882.80 is: 151,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,215.60 : 235,607.40 = 100,882.80 : x
  2. Step 2: Convert to fraction form
    157,215.60/235,607.40 = 100,882.80/x
  3. Step 3: Cross multiply
    157,215.60x = 235,607.40 × 100,882.80
  4. Step 4: Simplify right side
    157,215.60x = 23,768,734,212.72
  5. Step 5: Solve for x
    x = 23,768,734,212.72/157,215.60
  6. Step 6: Final answer
    x = 151,185.60

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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.