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Finding the Fourth Proportional to 127,218.70, 190,828.05 and 64,233.10

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Solution

The fourth proportional to 127,218.70, 190,828.05 and 64,233.10 is: 96,349.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,218.70 : 190,828.05 = 64,233.10 : x
  2. Step 2: Convert to fraction form
    127,218.70/190,828.05 = 64,233.10/x
  3. Step 3: Cross multiply
    127,218.70x = 190,828.05 × 64,233.10
  4. Step 4: Simplify right side
    127,218.70x = 12,257,477,218.46
  5. Step 5: Solve for x
    x = 12,257,477,218.46/127,218.70
  6. Step 6: Final answer
    x = 96,349.65

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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.