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Finding the Fourth Proportional to 157,898.40, 236,847.60 and 47,090.40

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Solution

The fourth proportional to 157,898.40, 236,847.60 and 47,090.40 is: 70,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,898.40 : 236,847.60 = 47,090.40 : x
  2. Step 2: Convert to fraction form
    157,898.40/236,847.60 = 47,090.40/x
  3. Step 3: Cross multiply
    157,898.40x = 236,847.60 × 47,090.40
  4. Step 4: Simplify right side
    157,898.40x = 11,153,248,223.04
  5. Step 5: Solve for x
    x = 11,153,248,223.04/157,898.40
  6. Step 6: Final answer
    x = 70,635.60

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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.