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Finding the Fourth Proportional to 84,840.60, 127,260.90 and 49,848.60

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Solution

The fourth proportional to 84,840.60, 127,260.90 and 49,848.60 is: 74,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,840.60 : 127,260.90 = 49,848.60 : x
  2. Step 2: Convert to fraction form
    84,840.60/127,260.90 = 49,848.60/x
  3. Step 3: Cross multiply
    84,840.60x = 127,260.90 × 49,848.60
  4. Step 4: Simplify right side
    84,840.60x = 6,343,777,699.74
  5. Step 5: Solve for x
    x = 6,343,777,699.74/84,840.60
  6. Step 6: Final answer
    x = 74,772.90

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1.5x scale

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.