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Finding the Fourth Proportional to 157,574.30, 236,219.28 and 57,664.86

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Solution

The fourth proportional to 157,574.30, 236,219.28 and 57,664.86 is: 86,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,574.30 : 236,219.28 = 57,664.86 : x
  2. Step 2: Convert to fraction form
    157,574.30/236,219.28 = 57,664.86/x
  3. Step 3: Cross multiply
    157,574.30x = 236,219.28 × 57,664.86
  4. Step 4: Simplify right side
    157,574.30x = 13,621,551,710.50
  5. Step 5: Solve for x
    x = 13,621,551,710.50/157,574.30
  6. Step 6: Final answer
    x = 86,445.26

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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.