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Finding the Fourth Proportional to 261,483.52, 392,160.48 and 74,496.64

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Solution

The fourth proportional to 261,483.52, 392,160.48 and 74,496.64 is: 111,726.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,483.52 : 392,160.48 = 74,496.64 : x
  2. Step 2: Convert to fraction form
    261,483.52/392,160.48 = 74,496.64/x
  3. Step 3: Cross multiply
    261,483.52x = 392,160.48 × 74,496.64
  4. Step 4: Simplify right side
    261,483.52x = 29,214,638,100.79
  5. Step 5: Solve for x
    x = 29,214,638,100.79/261,483.52
  6. Step 6: Final answer
    x = 111,726.50

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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.