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Finding the Fourth Proportional to 157,777.15, 236,664.02 and 126,038.31

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Solution

The fourth proportional to 157,777.15, 236,664.02 and 126,038.31 is: 189,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,777.15 : 236,664.02 = 126,038.31 : x
  2. Step 2: Convert to fraction form
    157,777.15/236,664.02 = 126,038.31/x
  3. Step 3: Cross multiply
    157,777.15x = 236,664.02 × 126,038.31
  4. Step 4: Simplify right side
    157,777.15x = 29,828,733,161.26
  5. Step 5: Solve for x
    x = 29,828,733,161.26/157,777.15
  6. Step 6: Final answer
    x = 189,056.10

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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.