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Finding the Fourth Proportional to 157,090.90, 219,460.70 and 157,090.90

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Solution

The fourth proportional to 157,090.90, 219,460.70 and 157,090.90 is: 219,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,090.90 : 219,460.70 = 157,090.90 : x
  2. Step 2: Convert to fraction form
    157,090.90/219,460.70 = 157,090.90/x
  3. Step 3: Cross multiply
    157,090.90x = 219,460.70 × 157,090.90
  4. Step 4: Simplify right side
    157,090.90x = 34,475,278,877.63
  5. Step 5: Solve for x
    x = 34,475,278,877.63/157,090.90
  6. Step 6: Final answer
    x = 219,460.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.