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Finding the Fourth Proportional to 157,687.76, 236,569.31 and 52,507.64

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Solution

The fourth proportional to 157,687.76, 236,569.31 and 52,507.64 is: 78,774.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,687.76 : 236,569.31 = 52,507.64 : x
  2. Step 2: Convert to fraction form
    157,687.76/236,569.31 = 52,507.64/x
  3. Step 3: Cross multiply
    157,687.76x = 236,569.31 × 52,507.64
  4. Step 4: Simplify right side
    157,687.76x = 12,421,696,690.32
  5. Step 5: Solve for x
    x = 12,421,696,690.32/157,687.76
  6. Step 6: Final answer
    x = 78,774.01

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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.