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Finding the Fourth Proportional to 157,641.61, 236,455.79 and 73,372.79

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Solution

The fourth proportional to 157,641.61, 236,455.79 and 73,372.79 is: 110,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,641.61 : 236,455.79 = 73,372.79 : x
  2. Step 2: Convert to fraction form
    157,641.61/236,455.79 = 73,372.79/x
  3. Step 3: Cross multiply
    157,641.61x = 236,455.79 × 73,372.79
  4. Step 4: Simplify right side
    157,641.61x = 17,349,421,023.95
  5. Step 5: Solve for x
    x = 17,349,421,023.95/157,641.61
  6. Step 6: Final answer
    x = 110,056.10

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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.