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Finding the Fourth Proportional to 157,874.40, 236,811.60 and 47,066.40

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Solution

The fourth proportional to 157,874.40, 236,811.60 and 47,066.40 is: 70,599.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,874.40 : 236,811.60 = 47,066.40 : x
  2. Step 2: Convert to fraction form
    157,874.40/236,811.60 = 47,066.40/x
  3. Step 3: Cross multiply
    157,874.40x = 236,811.60 × 47,066.40
  4. Step 4: Simplify right side
    157,874.40x = 11,145,869,490.24
  5. Step 5: Solve for x
    x = 11,145,869,490.24/157,874.40
  6. Step 6: Final answer
    x = 70,599.60

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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.