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Finding the Fourth Proportional to 157,376.60, 235,488.90 and 115,904.60

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Solution

The fourth proportional to 157,376.60, 235,488.90 and 115,904.60 is: 173,432.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,376.60 : 235,488.90 = 115,904.60 : x
  2. Step 2: Convert to fraction form
    157,376.60/235,488.90 = 115,904.60/x
  3. Step 3: Cross multiply
    157,376.60x = 235,488.90 × 115,904.60
  4. Step 4: Simplify right side
    157,376.60x = 27,294,246,758.94
  5. Step 5: Solve for x
    x = 27,294,246,758.94/157,376.60
  6. Step 6: Final answer
    x = 173,432.69

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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.