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Finding the Fourth Proportional to 157,572, 236,360.06 and 52,390.97

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Solution

The fourth proportional to 157,572, 236,360.06 and 52,390.97 is: 78,587.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,572 : 236,360.06 = 52,390.97 : x
  2. Step 2: Convert to fraction form
    157,572/236,360.06 = 52,390.97/x
  3. Step 3: Cross multiply
    157,572x = 236,360.06 × 52,390.97
  4. Step 4: Simplify right side
    157,572x = 12,383,132,451.72
  5. Step 5: Solve for x
    x = 12,383,132,451.72/157,572
  6. Step 6: Final answer
    x = 78,587.14

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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.