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Finding the Fourth Proportional to 98,289.59, 135,640.58 and 55,848.42

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Solution

The fourth proportional to 98,289.59, 135,640.58 and 55,848.42 is: 77,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,289.59 : 135,640.58 = 55,848.42 : x
  2. Step 2: Convert to fraction form
    98,289.59/135,640.58 = 55,848.42/x
  3. Step 3: Cross multiply
    98,289.59x = 135,640.58 × 55,848.42
  4. Step 4: Simplify right side
    98,289.59x = 7,575,311,801.64
  5. Step 5: Solve for x
    x = 7,575,311,801.64/98,289.59
  6. Step 6: Final answer
    x = 77,071.36

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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.