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Finding the Fourth Proportional to 84,790.68, 117,006.48 and 47,062.68

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Solution

The fourth proportional to 84,790.68, 117,006.48 and 47,062.68 is: 64,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,790.68 : 117,006.48 = 47,062.68 : x
  2. Step 2: Convert to fraction form
    84,790.68/117,006.48 = 47,062.68/x
  3. Step 3: Cross multiply
    84,790.68x = 117,006.48 × 47,062.68
  4. Step 4: Simplify right side
    84,790.68x = 5,506,638,526.17
  5. Step 5: Solve for x
    x = 5,506,638,526.17/84,790.68
  6. Step 6: Final answer
    x = 64,943.91

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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.