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Finding the Fourth Proportional to 157,447.89, 217,267.19 and 88,547.67

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Solution

The fourth proportional to 157,447.89, 217,267.19 and 88,547.67 is: 122,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,447.89 : 217,267.19 = 88,547.67 : x
  2. Step 2: Convert to fraction form
    157,447.89/217,267.19 = 88,547.67/x
  3. Step 3: Cross multiply
    157,447.89x = 217,267.19 × 88,547.67
  4. Step 4: Simplify right side
    157,447.89x = 19,238,503,331.26
  5. Step 5: Solve for x
    x = 19,238,503,331.26/157,447.89
  6. Step 6: Final answer
    x = 122,189.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.