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Finding the Fourth Proportional to 157,292.90, 235,952.97 and 43,440.76

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Solution

The fourth proportional to 157,292.90, 235,952.97 and 43,440.76 is: 65,164.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,292.90 : 235,952.97 = 43,440.76 : x
  2. Step 2: Convert to fraction form
    157,292.90/235,952.97 = 43,440.76/x
  3. Step 3: Cross multiply
    157,292.90x = 235,952.97 × 43,440.76
  4. Step 4: Simplify right side
    157,292.90x = 10,249,975,145.86
  5. Step 5: Solve for x
    x = 10,249,975,145.86/157,292.90
  6. Step 6: Final answer
    x = 65,164.89

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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.