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Finding the Fourth Proportional to 98,671.83, 136,165.10 and 53,959.83

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Solution

The fourth proportional to 98,671.83, 136,165.10 and 53,959.83 is: 74,463.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,671.83 : 136,165.10 = 53,959.83 : x
  2. Step 2: Convert to fraction form
    98,671.83/136,165.10 = 53,959.83/x
  3. Step 3: Cross multiply
    98,671.83x = 136,165.10 × 53,959.83
  4. Step 4: Simplify right side
    98,671.83x = 7,347,445,378.13
  5. Step 5: Solve for x
    x = 7,347,445,378.13/98,671.83
  6. Step 6: Final answer
    x = 74,463.46

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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.