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Finding the Fourth Proportional to 183,312.78, 252,971.29 and 102,740.28

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Solution

The fourth proportional to 183,312.78, 252,971.29 and 102,740.28 is: 141,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,312.78 : 252,971.29 = 102,740.28 : x
  2. Step 2: Convert to fraction form
    183,312.78/252,971.29 = 102,740.28/x
  3. Step 3: Cross multiply
    183,312.78x = 252,971.29 × 102,740.28
  4. Step 4: Simplify right side
    183,312.78x = 25,990,341,166.56
  5. Step 5: Solve for x
    x = 25,990,341,166.56/183,312.78
  6. Step 6: Final answer
    x = 141,781.39

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1.5x scale

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.