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Finding the Fourth Proportional to 261,365.08, 392,222.40 and 111,640.36

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Solution

The fourth proportional to 261,365.08, 392,222.40 and 111,640.36 is: 167,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,365.08 : 392,222.40 = 111,640.36 : x
  2. Step 2: Convert to fraction form
    261,365.08/392,222.40 = 111,640.36/x
  3. Step 3: Cross multiply
    261,365.08x = 392,222.40 × 111,640.36
  4. Step 4: Simplify right side
    261,365.08x = 43,787,849,936.06
  5. Step 5: Solve for x
    x = 43,787,849,936.06/261,365.08
  6. Step 6: Final answer
    x = 167,535.20

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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.