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Finding the Fourth Proportional to 85,061.80, 117,384.36 and 46,820.52

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Solution

The fourth proportional to 85,061.80, 117,384.36 and 46,820.52 is: 64,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,061.80 : 117,384.36 = 46,820.52 : x
  2. Step 2: Convert to fraction form
    85,061.80/117,384.36 = 46,820.52/x
  3. Step 3: Cross multiply
    85,061.80x = 117,384.36 × 46,820.52
  4. Step 4: Simplify right side
    85,061.80x = 5,495,996,775.07
  5. Step 5: Solve for x
    x = 5,495,996,775.07/85,061.80
  6. Step 6: Final answer
    x = 64,611.81

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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.