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Finding the Fourth Proportional to 212,484.63, 318,761.56 and 62,740.04

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Solution

The fourth proportional to 212,484.63, 318,761.56 and 62,740.04 is: 94,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,484.63 : 318,761.56 = 62,740.04 : x
  2. Step 2: Convert to fraction form
    212,484.63/318,761.56 = 62,740.04/x
  3. Step 3: Cross multiply
    212,484.63x = 318,761.56 × 62,740.04
  4. Step 4: Simplify right side
    212,484.63x = 19,999,111,509.48
  5. Step 5: Solve for x
    x = 19,999,111,509.48/212,484.63
  6. Step 6: Final answer
    x = 94,120.27

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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.