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Finding the Fourth Proportional to 261,007.60, 391,569.63 and 83,525.26

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Solution

The fourth proportional to 261,007.60, 391,569.63 and 83,525.26 is: 125,306.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,007.60 : 391,569.63 = 83,525.26 : x
  2. Step 2: Convert to fraction form
    261,007.60/391,569.63 = 83,525.26/x
  3. Step 3: Cross multiply
    261,007.60x = 391,569.63 × 83,525.26
  4. Step 4: Simplify right side
    261,007.60x = 32,705,955,153.85
  5. Step 5: Solve for x
    x = 32,705,955,153.85/261,007.60
  6. Step 6: Final answer
    x = 125,306.52

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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.